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Choosing the right skimmer winterizing device is essential for protecting your pool’s skimmer during the off-season. The Swimline HydroTools Skimmer Winterizing Kit stands out as the best overall choice thanks to its reliable design and ease of installation. For those on a budget, the 2 Pack 9” Pool Skimmer Plugs offers a cost-effective solution, while the Pool Wide Mouth Skimmer Winter Plug for Hayward provides a specialized fit for common skimmer models. Each option balances durability, ease of use, and price, but tradeoffs include fit compatibility and longevity. Keep reading for a detailed breakdown of these devices and how to select the right one for your pool.

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13
compared
9
brands
4
materials
11.2 ounces
max item weight
Which skimmer winterizing device should you buy?
★ Top Pick
Swimline HydroTools Skimmer Wi
Best Overall for Versatile Pool Winterization
Effective in preventing skimmer cracking during winter
See on Amazon →
Homeowners who need a reliable, inexpensive way to seal skimmer openings and protect plumbing during winter.
2 Pack 9” Pool Skimmer Plugs
Effective freeze protection for pool skimmers and return lines
View on Amazon →
Pool owners with threaded skimmers seeking a durable, large-capacity winter plug that can accommodate antifreeze injection.
16-inch Pool Skimmer Plug for
Durable ABS construction resists freezing temperatures
View on Amazon →
Owners with multiple pools or large threaded skimmers looking for durable, large-capacity winter plugs.
2 Pack 16 in Pool Skimmer Plug
Universal fit for most pools with threaded skimmers
View on Amazon →
Owners of Hayward SP1091WM or Aquador 1010 skimmers seeking an easy-to-install winter plug with a reliable seal.
Pool Wide Mouth Skimmer Winter
Easy to install with a tight seal
View on Amazon →
Item Weight — compared
Swimline HydroTools Skimmer Wi11.2 ounces
Pool Wide Mouth Skimmer Winter6.4 ounces
Pool Skimmer Winter Cover Plat5.6 ounces
OJP 10 Inch Pool Skimmer Winte8.4 ounces
Pool Skimmer Plug3.34 ounces
Wide Mouth Skimmer Winter Plug6.5 ounces
Poolzilla 9” Skimmer Winteriz3.84 ounces
Pros & cons at a glance
Swimline HydroTools Skimmer Wi
✓ Effective in preventing skimmer cracking during winter
✗ Limited information on durability over multiple seasons
2 Pack 9” Pool Skimmer Plugs
✓ Effective freeze protection for pool skimmers and return lines
✗ Manual measurement may lead to slight size discrepancies
16-inch Pool Skimmer Plug for
✓ Durable ABS construction resists freezing temperatures
✗ Only suitable for threaded skimmers
2 Pack 16 in Pool Skimmer Plug
✓ Universal fit for most pools with threaded skimmers
✗ Limited to winter use, not for regular operation
Pool Wide Mouth Skimmer Winter
✓ Easy to install with a tight seal
✗ Requires measuring to ensure proper fit
Pool Skimmer Winter Cover Plat
✓ Tight, weather-resistant seal ensures effective winter protection
✗ Requires precise skimmer measurement for proper fit
OJP 10 Inch Pool Skimmer Winte
✓ Durable ABS plastic withstands harsh winter conditions
✗ Limited to 10-inch skimmers only
Wide Mouth Pool Skimmer Winter
✓ Easy to install without tools
✗ Limited to specific Hayward models
Pool Skimmer Plug
✓ Universally fits both in-ground and above-ground skimmers
✗ Requires accurate measurement for perfect fit
IGWMH Wide Mouth Pool Skimmer
✓ Fits most in-ground wide-mouth skimmers
✗ Requires precise measurement for proper fit
3 in 1 Winter Closing Kit
✓ Simple to use with minimal setup
✗ Limited to pools up to 30,000 gallons, restricting larger pools
Wide Mouth Skimmer Winter Plug
✓ Easy to install and remove without tools
✗ Requires accurate measurement for a snug fit
Poolzilla 9” Skimmer Winteriz
✓ Durable ABS plastic construction for harsh winters
✗ Limited to specific skimmer thread sizes

Complete the kit

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Key Takeaways

  • The best devices combine ease of installation with a secure fit to prevent water intrusion during winter.
  • Price varies, but investing in a high-quality plug can extend durability and reduce replacement frequency.
  • Compatibility with common skimmer sizes (1.5” and 2”) is vital to avoid leaks and damage.
  • Some devices are designed specifically for above-ground pools, while others suit in-ground setups—choose accordingly.
  • Ease of use and clear instructions significantly reduce the risk of improper winterization and potential damage.
2
2 Pack 9” Pool Skimmer Plugs
Best Value for Durable, Easy-to-Use Plugs
1
Swimline HydroTools Skimmer Wi
Best Overall for Versatile Pool Winterization
3
16-inch Pool Skimmer Plug for
Best for Universal Fit and Heavy-Duty Protection

Our Top Skimmer Winterizing Devices Picks

Swimline HydroTools Skimmer Winterizing KitSwimline HydroTools Skimmer Winterizing KitBest Overall for Versatile Pool WinterizationProduct Dimensions: 16.25 x 3.12 x 3.12 inchesItem Weight: 11.2 ouncesDepartment: Unisex-AdultVIEW ON AMAZONSee Our Full Breakdown
2 Pack 9” Pool Skimmer Plugs with 2 Pack 1.5” Threaded Winterizing Plugs for Pool and Spa Winterization2 Pack 9'' Pool Skimmer Plugs with 2 Pack 1.5'' Threaded Winterizing Plugs for Pool and Spa WinterizationBest Value for Durable, Easy-to-Use PlugsMaterial: ABS plasticColor: blue, whiteSize: 9 inches, 1.5 inchesVIEW ON AMAZONSee Our Full Breakdown
16-inch Pool Skimmer Plug for 1-1/2 in & 2 in Threaded Skimmers16-inch Pool Skimmer Plug for 1-1/2 in & 2 in Threaded SkimmersBest for Universal Fit and Heavy-Duty ProtectionMaterial: ABS plasticCompatible with: Threaded skimmers 1-1/2″ & 2″Pool Type: Above and ingroundVIEW ON AMAZONSee Our Full Breakdown
2 Pack 16 in Pool Skimmer Plug for 1-1/2 in & 2 in Threaded Skimmers2 Pack 16 in Pool Skimmer Plug for 1-1/2 in & 2 in Threaded SkimmersBest for Heavy-Duty, Multiple-Pool UseMaterial: ABS plasticCompatible with: 1-1/2″ & 2″ threaded skimmersPool Type: Above and ingroundVIEW ON AMAZONSee Our Full Breakdown
Pool Wide Mouth Skimmer Winter Plug for Hayward SP1091WM and Aquador 1010Pool Wide Mouth Skimmer Winter Plug for Hayward SP1091WM and Aquador 1010Best for Easy, Reliable Fit on Popular ModelsProduct Dimensions: 12 x 6 x 0.9 inchesItem Weight: 6.4 ouncesModel Number: SP1091WMVIEW ON AMAZONSee Our Full Breakdown
Pool Skimmer Winter Cover Plate Plug for Hayward SP1091WM Above Ground PoolPool Skimmer Winter Cover Plate Plug for Hayward SP1091WM Above Ground PoolBest for Compatibility and Ease of UseSkimmer opening size: 11-1/2″ W x 4-7/8″ HItem Dimensions: 0.2 x 0.15 x 0.12 inchesItem Weight: 5.6 ouncesVIEW ON AMAZONSee Our Full Breakdown
OJP 10 Inch Pool Skimmer Winter Plug – 2 PackOJP 10 Inch Pool Skimmer Winter Plug - 2 PackBest Value for Bulk Purchase and VersatilityCompatibility: Fits 10 in skimmers, 1-1/2″ and 2″ tapered pipe threadsMaterial: ABS plasticDimensions: 3 x 1.85 x 1.2 inchesVIEW ON AMAZONSee Our Full Breakdown
Wide Mouth Pool Skimmer Winter Plug for Hayward SP1091WMWide Mouth Pool Skimmer Winter Plug for Hayward SP1091WMBest for Specific Hayward Models and Quick InstallationSkimmer opening measurement: 4 7/8 x 11 1/2 inchesFits models: Hayward SP1091WM, SP1091, SP1094, SP1094W, SP1095, K002WBX, PS002Material: High-density foamVIEW ON AMAZONSee Our Full Breakdown
Pool Skimmer Plug, Skimmer Winterizing Plug – Above and In-Ground Pool, Ice Guard for 1-½’’ and 2’’ Threaded SkimmersPool Skimmer Plug, Skimmer Winterizing Plug - Above and In-Ground Pool, Ice Guard for 1-½’’ and 2’’ Threaded SkimmersBest for All-Pool Compatibility and User-Friendly DesignCompatibility: Fits 1-1/2″ and 2″ threaded skimmersMaterial: Tough, weather-resistant plasticDimensions: 9 inchesVIEW ON AMAZONSee Our Full Breakdown
IGWMH Wide Mouth Pool Skimmer Winter Plug for Most In-Ground Widemouth SkimmersIGWMH Wide Mouth Pool Skimmer Winter Plug for Most In-Ground Widemouth SkimmersBest for Wide-Mouth In-Ground Skimmers and Easy FitCompatibility: Most Widemouth I/G Skimmers, Hayward SP1085, Aquador 1085Skimmer opening measurement: 5 5/8″ H x 15 3/16″ WMaterial: High-density foam, ABS outer, EVA interiorVIEW ON AMAZONSee Our Full Breakdown
3 in 1 Winter Closing Kit – Pool Winterizing Kit for Above Ground and Inground Pools, Easy to Use – Up to 30,000 Gallon3 in 1 Winter Closing Kit - Pool Winterizing Kit for Above Ground and Inground Pools, Easy to Use - Up to 30,000 GallonBest Overall for Ease and VersatilityBrand: POOLHACKERNumber of Items: 2Unit Count: 14 Fluid OuncesVIEW ON AMAZONSee Our Full Breakdown
Wide Mouth Skimmer Winter Plug for Hayward SP1091WM Above Ground PoolWide Mouth Skimmer Winter Plug for Hayward SP1091WM Above Ground PoolBest for Ease of Installation and Freeze ProtectionCompatible Models: Hayward SP1091WM, SP1091, SP1094, SP1094W, SP1095, Kokido K002WBX, Waterway Flo-Pro II, Poolstyle PS002Material: High-density foamDimensions: 11-1/2 x 4-7/8 inchesVIEW ON AMAZONSee Our Full Breakdown
Poolzilla 9” Skimmer Winterizing Plug, Ice Guard for 1.5” to 2” ThreadPoolzilla 9'' Skimmer Winterizing Plug, Ice Guard for 1.5'' to 2'' ThreadBest for Heavy-Duty Winter ProtectionProduct Dimensions: 3 x 3 x 9 inchesItem Weight: 3.84 ouncesCompatibility: Fits skimmers with 1.5” to 2” threadsVIEW ON AMAZONSee Our Full Breakdown
Specs at a glance
skimmer winterizing deviceMaterialItem Weight
Swimline HydroTools Skimmer Wi11.2 ounces
2 Pack 9” Pool Skimmer Plugs ABS plastic
16-inch Pool Skimmer Plug for ABS plastic
2 Pack 16 in Pool Skimmer PlugABS plastic
Pool Wide Mouth Skimmer Winter6.4 ounces
Pool Skimmer Winter Cover Plat5.6 ounces
OJP 10 Inch Pool Skimmer WinteABS plastic8.4 ounces
Wide Mouth Pool Skimmer WinterHigh-density foam
Pool Skimmer PlugTough, weather-resistant plastic3.34 ounces
IGWMH Wide Mouth Pool Skimmer High-density foam, ABS outer, EVA interior
3 in 1 Winter Closing Kit
Wide Mouth Skimmer Winter PlugHigh-density foam6.5 ounces
Poolzilla 9” Skimmer WinterizABS plastic3.84 ounces

More Details on Our Top Picks

  1. Swimline HydroTools Skimmer Winterizing Kit

    Swimline HydroTools Skimmer Winterizing Kit

    Best Overall for Versatile Pool Winterization

    View on Amazon

    This kit stands out for its comprehensive approach to winterizing both in-ground and above-ground pools, including components to plug skimmer holes and attach a blower hose to clear water and prevent pipe damage. Compared with simpler plugs, this kit offers the added benefit of plumbing protection, making it ideal for pools in climates with severe freezing. However, it may lack durability over multiple seasons, as some users report wear, and installation instructions are not included, which could challenge first-time users. Its all-in-one design justifies its price for those seeking a complete winterization solution.

    Pros:
    • Effective in preventing skimmer cracking during winter
    • Includes all necessary components for winterizing
    • Compatible with both in-ground and above-ground pools
    Cons:
    • Limited information on durability over multiple seasons
    • No specific instructions included for installation
    • Some users find it less effective in very harsh climates

    Best for: Pool owners seeking an all-in-one, versatile winterizing kit for both in-ground and above-ground pools.

    Not ideal for: Casual pool owners who prefer a simple, single-component solution or have minimal winterization needs.

    • Product Dimensions:16.25 x 3.12 x 3.12 inches
    • Item Weight:11.2 ounces
    • Department:Unisex-Adult
    • Manufacturer:Swimline
    • Item Model Number:89343
    • Compatibility:In-ground and above-ground pools
    Our verdict
    “This kit is best suited for owners wanting a comprehensive, adaptable winterization solution despite potential durability concerns.”
  2. 2 Pack 9” Pool Skimmer Plugs with 2 Pack 1.5” Threaded Winterizing Plugs for Pool and Spa Winterization

    2 Pack 9'' Pool Skimmer Plugs with 2 Pack 1.5'' Threaded Winterizing Plugs for Pool and Spa Winterization

    Best Value for Durable, Easy-to-Use Plugs

    View on Amazon

    This set offers a straightforward, cost-effective solution for winterizing pool skimmers and return lines, with durable ABS plastic construction that withstands cold temperatures. Unlike the Swimline kit, it focuses solely on sealing openings, making it ideal for owners who want a simple, no-fuss approach. The plugs are easy to install and remove, simplifying seasonal tasks, but manual measurement may cause slight sizing issues, and color variations could affect visibility. It’s a practical choice for those who prioritize affordability and durability over a multi-component system.

    Pros:
    • Effective freeze protection for pool skimmers and return lines
    • Durable construction withstands extreme cold
    • Easy to install and remove, simplifying winterization
    Cons:
    • Manual measurement may lead to slight size discrepancies
    • Color may vary slightly due to screen display differences

    Best for: Homeowners who need a reliable, inexpensive way to seal skimmer openings and protect plumbing during winter.

    Not ideal for: Pool owners seeking a comprehensive winterizing kit with plumbing and water removal features, as this is purely sealing plugs.

    • Material:ABS plastic
    • Color:blue, white
    • Size:9 inches, 1.5 inches
    • Includes:2 x 9-inch skimmer plugs, 2 x 1.5-inch threaded return line plugs with O-rings
    Our verdict
    “This set is perfect for owners seeking durable, affordable plugs to seal pool openings during winter, with less emphasis on additional features.”
  3. 16-inch Pool Skimmer Plug for 1-1/2 in & 2 in Threaded Skimmers

    16-inch Pool Skimmer Plug for 1-1/2 in & 2 in Threaded Skimmers

    Best for Universal Fit and Heavy-Duty Protection

    View on Amazon

    This 16-inch ABS plastic plug offers a robust, universal solution for winterizing threaded skimmers, featuring a liquid filling hole for antifreeze injection that maximizes protection. Compared to smaller plugs like the 9-inch set, it provides a larger coverage area, suitable for most in-ground and above-ground pools with threaded skimmers. Its durability in freezing conditions is a strong point, but it’s limited to threaded skimmers and is meant solely for winter use, not regular operation. Its size and injection feature make it ideal for owners who want a reliable, heavy-duty seal.

    Pros:
    • Durable ABS construction resists freezing temperatures
    • Universal fit for most in-ground and above-ground pools
    • Includes liquid filling hole for antifreeze injection
    Cons:
    • Only suitable for threaded skimmers
    • Limited to winterization use, not for regular pool operation

    Best for: Pool owners with threaded skimmers seeking a durable, large-capacity winter plug that can accommodate antifreeze injection.

    Not ideal for: Owners with non-threaded skimmers or those looking for multi-season use, as this is designed strictly for winterization.

    • Material:ABS plastic
    • Compatible with:Threaded skimmers 1-1/2″ & 2″
    • Pool Type:Above and inground
    • Color:Blue
    • Size:16 inches in height
    Our verdict
    “This large, injection-compatible plug is best for owners needing robust winter protection for threaded skimmers in severe climates.”
  4. 2 Pack 16 in Pool Skimmer Plug for 1-1/2 in & 2 in Threaded Skimmers

    2 Pack 16 in Pool Skimmer Plug for 1-1/2 in & 2 in Threaded Skimmers

    Best for Heavy-Duty, Multiple-Pool Use

    View on Amazon

    This pair of 16-inch plugs provides a sturdy, universal winterizing option, with the advantage of liquid filling holes for antifreeze injection, making it suitable for most pool types. Compared to smaller plugs, this set offers more coverage and durability, especially useful for owners with multiple pools or larger skimmers. Still, it’s limited strictly to winterization, and it does not include antifreeze liquid, which must be purchased separately. If you need a reliable, long-lasting seal, this set delivers, albeit with some added prep work.

    Pros:
    • Universal fit for most pools with threaded skimmers
    • Durable ABS material resists ice damage
    • Includes liquid filling holes for antifreeze injection
    Cons:
    • Limited to winter use, not for regular operation
    • Does not include antifreeze liquid

    Best for: Owners with multiple pools or large threaded skimmers looking for durable, large-capacity winter plugs.

    Not ideal for: Owners seeking a plug for occasional use or regular pool maintenance, as these are strictly seasonal and designed for winterizing only.

    • Material:ABS plastic
    • Compatible with:1-1/2″ & 2″ threaded skimmers
    • Pool Type:Above and inground
    • Color:Blue
    • Size:16 inches
    Our verdict
    “This set is ideal for owners needing heavy-duty, large winter plugs for multiple pools or large skimmers, with the caveat of purchasing antifreeze separately.”
  5. Pool Wide Mouth Skimmer Winter Plug for Hayward SP1091WM and Aquador 1010

    Pool Wide Mouth Skimmer Winter Plug for Hayward SP1091WM and Aquador 1010

    Best for Easy, Reliable Fit on Popular Models

    View on Amazon

    This wide-mouth winter plug offers a simple, effective solution for protecting specific above-ground skimmer models like Hayward SP1091WM and Aquador 1010. Its easy-to-install design and tight seal help prevent freezing damage without draining water, making it suitable for owners who want straightforward winter protection. However, measuring for the correct fit is necessary before installation, and it’s strictly for winter use. Compared to universal plugs, this model provides a more secure fit on compatible models, but lacks the versatility for other skimmer types.

    Pros:
    • Easy to install with a tight seal
    • Durable construction for harsh weather
    • Compatible with multiple skimmer models
    Cons:
    • Requires measuring to ensure proper fit
    • Limited to winterizing purposes only

    Best for: Owners of Hayward SP1091WM or Aquador 1010 skimmers seeking an easy-to-install winter plug with a reliable seal.

    Not ideal for: Pool owners with non-compatible skimmer models or those needing a multi-purpose winterizing device, as this is model-specific.

    • Product Dimensions:12 x 6 x 0.9 inches
    • Item Weight:6.4 ounces
    • Model Number:SP1091WM
    Our verdict
    “This plug is best for owners of specific skimmer models who want a quick, reliable winter seal with minimal fuss.”
  6. Pool Skimmer Winter Cover Plate Plug for Hayward SP1091WM Above Ground Pool

    Pool Skimmer Winter Cover Plate Plug for Hayward SP1091WM Above Ground Pool

    Best for Compatibility and Ease of Use

    View on Amazon

    This wide mouth cover plate stands out for its straightforward installation and reliable sealing, making it a solid choice for above ground pools with compatible wide mouth skimmers. Compared with the Wide Mouth Skimmer Winter Plug for Hayward SP1091WM, it offers a similar fit but with a slightly more robust impact and weather resistance. Its main tradeoff is the need to measure your skimmer carefully before purchase, as it’s designed specifically for wide mouth openings and won’t fit smaller or non-standard models. This makes it ideal for pool owners who prioritize a simple, durable solution that fits common above ground models without fuss.

    Pros:
    • Tight, weather-resistant seal ensures effective winter protection
    • Durable impact and weather-resistant materials extend lifespan
    • Easy to install without special tools
    Cons:
    • Requires precise skimmer measurement for proper fit
    • Limited compatibility to wide mouth skimmers only

    Best for: Above ground pool owners with wide mouth skimmers who want an easy-to-install, durable winter cover.

    Not ideal for: Pool owners with non-wide mouth skimmers or those who prefer universal fit options, since this model is model-specific.

    • Skimmer opening size:11-1/2″ W x 4-7/8″ H
    • Item Dimensions:0.2 x 0.15 x 0.12 inches
    • Item Weight:5.6 ounces
    • Compatible models:Hayward SP1091WM, Aquador 1010, Kokido K002WBX, Poolstyle PS002, Waterway Flo-Pro II
    Our verdict
    “This pick is best suited for above ground pool owners with compatible wide mouth skimmers seeking a reliable and straightforward winter cover.”
  7. OJP 10 Inch Pool Skimmer Winter Plug – 2 Pack

    OJP 10 Inch Pool Skimmer Winter Plug - 2 Pack

    Best Value for Bulk Purchase and Versatility

    View on Amazon

    This 2-pack of 10-inch plugs offers an affordable solution for pool owners with both above-ground and inground skimmers. It compares favorably to specialized products like the Pool Skimmer Plug, Skimmer Winterizing Plug by providing two units at a lower cost, though it is limited to 10-inch skimmers with 1-1/2″ or 2″ tapered pipe threads. The main tradeoff involves its incompatibility with Pentair 2″ fittings and other non-10-inch models, which could be a concern for owners with different skimmer sizes. This set makes the most sense for budget-conscious owners who need multiple plugs for different pools or for a bulk winterizing approach.

    Pros:
    • Durable ABS plastic withstands harsh winter conditions
    • Easy screw-in installation without tools
    • Prevents freezing damage and reduces maintenance
    Cons:
    • Limited to 10-inch skimmers only
    • Not compatible with certain fittings like Pentair 2″

    Best for: Pool owners needing multiple plugs or seeking a cost-effective, durable winterizing solution for 10-inch skimmers.

    Not ideal for: Owners with Pentair or non-10-inch skimmers, as it won’t fit those fittings and sizes.

    • Compatibility:Fits 10 in skimmers, 1-1/2″ and 2″ tapered pipe threads
    • Material:ABS plastic
    • Dimensions:3 x 1.85 x 1.2 inches
    • Item Weight:8.4 ounces
    Our verdict
    “This set is ideal for budget-conscious pool owners with 10-inch skimmers seeking reliable, bulk winter protection.”
  8. Wide Mouth Pool Skimmer Winter Plug for Hayward SP1091WM

    Wide Mouth Pool Skimmer Winter Plug for Hayward SP1091WM

    Best for Specific Hayward Models and Quick Installation

    View on Amazon

    This wide mouth winter plug is designed specifically for Hayward models like the SP1091WM and others, offering a quick, tool-free installation. It excels in providing effective ice and debris protection, with high-density foam and a UV/chemical-resistant outer material ensuring longevity. Compared to products like the Pool Skimmer Winter Cover Plate Plug, it’s more tailored to Hayward’s wide mouth skimmers, offering a snug fit that minimizes leaks. Its main limitation is that it’s not suitable for smaller or non-Hayward skimmer models, which could restrict its use. This makes it best for pool owners with compatible Hayward skimmers seeking an easy, durable winter solution.

    Pros:
    • Easy to install without tools
    • Effective protection against ice and debris
    • High-density foam with UV and chemical resistance
    Cons:
    • Limited to specific Hayward models
    • Wide mouth design may not fit smaller skimmers

    Best for: Hayward skimmer owners looking for a simple, durable winter plug that fits perfectly and requires no tools.

    Not ideal for: Pool owners with non-Hayward or smaller skimmers, since this product is model-specific for certain Hayward wide-mouth skimmers.

    • Skimmer opening measurement:4 7/8 x 11 1/2 inches
    • Fits models:Hayward SP1091WM, SP1091, SP1094, SP1094W, SP1095, K002WBX, PS002
    • Material:High-density foam
    • Durability:UV and chemical resistant
    Our verdict
    “This pick is perfect for Hayward wide-mouth skimmer owners seeking a quick, reliable winter plug.”
  9. Pool Skimmer Plug, Skimmer Winterizing Plug – Above and In-Ground Pool, Ice Guard for 1-½’’ and 2’’ Threaded Skimmers

    Pool Skimmer Plug, Skimmer Winterizing Plug - Above and In-Ground Pool, Ice Guard for 1-½’’ and 2’’ Threaded Skimmers

    Best for All-Pool Compatibility and User-Friendly Design

    View on Amazon

    This 9-inch, dual-size compatible plug offers maximum versatility for both above-ground and in-ground pools, fitting 1-1/2″ and 2″ threaded skimmers effortlessly. It compares favorably to larger plugs like the Poolzilla 9” Skimmer Winterizing Plug by providing a straightforward screw-in design that’s easy to install and remove. The main tradeoff is that it’s slightly less specialized, so users must ensure proper sizing for a perfect fit. Its universal design makes it an excellent choice for pool owners seeking a dependable, all-in-one winterizing solution that’s simple to operate.

    Pros:
    • Universally fits both in-ground and above-ground skimmers
    • Durable, weather-resistant construction
    • Easy screw-in installation
    Cons:
    • Requires accurate measurement for perfect fit
    • Limited to 1-1/2″ and 2″ threaded skimmers

    Best for: Pool owners with both above-ground and in-ground pools who want a universal, easy-to-install winter plug.

    Not ideal for: Owners with non-threaded or non-standard skimmer sizes, as this is designed specifically for threaded models within 1-1/2″ and 2″ sizes.

    • Compatibility:Fits 1-1/2″ and 2″ threaded skimmers
    • Material:Tough, weather-resistant plastic
    • Dimensions:9 inches
    • Item Weight:3.34 ounces
    Our verdict
    “This versatile plug suits pool owners with multiple pool types needing a simple, reliable winter seal.”
  10. IGWMH Wide Mouth Pool Skimmer Winter Plug for Most In-Ground Widemouth Skimmers

    IGWMH Wide Mouth Pool Skimmer Winter Plug for Most In-Ground Widemouth Skimmers

    Best for Wide-Mouth In-Ground Skimmers and Easy Fit

    View on Amazon

    The IGWMH Wide Mouth Pool Skimmer Winter Plug offers broad compatibility with most in-ground wide-mouth skimmers, including models like Hayward SP1085 and Aquador 1085. It stands out for its UV-resistant, weatherproof materials, ensuring long-lasting protection against harsh winter conditions. Compared to the Pool Skimmer Winter Cover Plate Plug, it provides a more adaptable fit for many in-ground skimmers, though its success depends heavily on precise measurement of your skimmer opening. This makes it an excellent choice for pool owners with standard wide-mouth in-ground skimmers who want a secure, easy-to-install winter plug.

    Pros:
    • Fits most in-ground wide-mouth skimmers
    • UV-resistant and weatherproof design
    • Simple installation with a tight seal
    Cons:
    • Requires precise measurement for proper fit
    • Limited to wide-mouth designs

    Best for: In-ground pool owners with wide-mouth skimmers seeking a durable, adaptable winter plug.

    Not ideal for: Owners with non-standard skimmer sizes or non-wide-mouth models, since fit depends on accurate measurement and compatibility.

    • Compatibility:Most Widemouth I/G Skimmers, Hayward SP1085, Aquador 1085
    • Skimmer opening measurement:5 5/8″ H x 15 3/16″ W
    • Material:High-density foam, ABS outer, EVA interior
    • Product Dimensions:1 x 0.99 x 1 inches
    Our verdict
    “This plug is best for in-ground pool owners with wide-mouth skimmers who need a versatile, durable winter protection solution.”
  11. 3 in 1 Winter Closing Kit – Pool Winterizing Kit for Above Ground and Inground Pools, Easy to Use – Up to 30,000 Gallon

    3 in 1 Winter Closing Kit - Pool Winterizing Kit for Above Ground and Inground Pools, Easy to Use - Up to 30,000 Gallon

    Best Overall for Ease and Versatility

    View on Amazon

    This 3-in-1 winter closing kit stands out for its simplicity and ability to maintain pool clarity during winter, especially compared to the more specialized skimmer plugs. Its ease of use, requiring just the placement of two winter balls, makes it ideal for homeowners seeking a straightforward solution without complex installation. While it works well for pools up to 30,000 gallons, its effectiveness can vary depending on pool conditions and it doesn’t cover all winterization needs with only two winter balls. Compared with individual skimmer plugs, this kit offers a broader approach but sacrifices some precision and durability. This pick makes the most sense for pool owners who want a quick, all-in-one winterization aid and are comfortable with a slightly less tailored solution.

    Pros:
    • Simple to use with minimal setup
    • Helps maintain clarity and vibrant color in winter
    • Suitable for all pool shapes and sizes up to 30,000 gallons
    Cons:
    • Limited to pools up to 30,000 gallons, restricting larger pools
    • Effectiveness depends on pool conditions and may vary
    • Includes only two winter balls, possibly requiring additional products for full winterization

    Best for: Homeowners with pools up to 30,000 gallons seeking an easy, all-in-one winterization method

    Not ideal for: Pool owners with larger pools or those requiring comprehensive winter protection, since it only includes two winter balls and may need supplementary products

    • Brand:POOLHACKER
    • Number of Items:2
    • Unit Count:14 Fluid Ounces
    • Model Number:YC037
    • Best Sellers Rank:#92 in Patio, Lawn & Garden, #2 in Pool & Spa Parts & Accessories
    Our verdict
    “This kit is ideal for small to medium pool owners who prioritize quick, easy winter closings without extensive equipment.”
  12. Wide Mouth Skimmer Winter Plug for Hayward SP1091WM Above Ground Pool

    Wide Mouth Skimmer Winter Plug for Hayward SP1091WM Above Ground Pool

    Best for Ease of Installation and Freeze Protection

    View on Amazon

    This wide mouth skimmer plug excels at providing a quick and reliable freeze barrier for above ground pools, making it a strong alternative to more complex winterization methods. Its simple installation process means it can be fitted or removed in minutes, unlike some plugs that require precise measurements or additional tools. The UV-resistant foam ensures durability over multiple seasons, but careful measurement is necessary to ensure a perfect fit, especially for pools with different skimmer dimensions. Compared to Poolzilla’s rigid ABS design, this foam plug offers a more flexible fit but might degrade faster if exposed to harsh conditions. It makes the most sense for pool owners who want an easy, reusable solution that offers solid freeze protection without fussing over compatibility details.

    Pros:
    • Easy to install and remove without tools
    • Provides effective freeze and debris protection
    • Universal fit for multiple skimmer models
    Cons:
    • Requires accurate measurement for a snug fit
    • Foam material may degrade with prolonged exposure to sunlight
    • Potential for fit issues on non-standard or irregular skimmers

    Best for: Above ground pool owners seeking a hassle-free, reusable freeze protection plug

    Not ideal for: Pool owners with custom or non-standard skimmer sizes, as fit may vary and require careful measurement

    • Compatible Models:Hayward SP1091WM, SP1091, SP1094, SP1094W, SP1095, Kokido K002WBX, Waterway Flo-Pro II, Poolstyle PS002
    • Material:High-density foam
    • Dimensions:11-1/2 x 4-7/8 inches
    • Item Weight:6.5 ounces
    Our verdict
    “This foam skimmer plug offers a straightforward, reusable option for protecting above ground pools from winter freeze damage.”
  13. Poolzilla 9” Skimmer Winterizing Plug, Ice Guard for 1.5” to 2” Thread

    Poolzilla 9'' Skimmer Winterizing Plug, Ice Guard for 1.5'' to 2'' Thread

    Best for Heavy-Duty Winter Protection

    View on Amazon

    The Poolzilla 9-inch ice guard stands out for its durability and suitability for harsh winter conditions, especially compared to foam-based plugs like the Wide Mouth Skimmer Plug. Made of ABS plastic, it provides a robust, water-tight seal that can withstand severe cold and ice pressure, making it ideal for long-term seasonal use. Its compatibility with most skimmers with 1.5-inch to 2-inch threads offers broad applicability, but it’s limited to specific thread sizes, which could be a drawback for some pools. Installation is straightforward, yet the solid plastic construction makes it a bit bulkier and less flexible than foam options. This product makes the most sense for pool owners needing a permanent, high-strength seal to prevent costly damage from freeze expansion.

    Pros:
    • Durable ABS plastic construction for harsh winters
    • Creates a reliable, water-tight seal
    • Easy to install and remove with compatible threads
    Cons:
    • Limited to specific skimmer thread sizes
    • Bulkier and less flexible than foam plugs
    • No included installation accessories, which may complicate fitting

    Best for: Pool owners in colder climates needing a durable, long-lasting winterizing plug that prevents freeze damage

    Not ideal for: Owners of pools with non-standard skimmer sizes or those preferring lightweight, flexible options for seasonal use

    • Product Dimensions:3 x 3 x 9 inches
    • Item Weight:3.84 ounces
    • Compatibility:Fits skimmers with 1.5” to 2” threads
    • Material:ABS plastic
    Our verdict
    “This heavy-duty ice guard is best suited for climates where robust, long-term freeze protection outweighs flexibility or ease of use.”
skimmer winterizing devices
What makes a great skimmer winterizing device
1
Fit and Compatibility
Ensuring your winterizing device matches your skimmer’s size and threading specifications is fundamental.
2
Durability and Material Quality
The harsh winter environment demands robust materials—high-quality plastics or rubber that resist cracking, warping, or degradatio
3
Ease of Installation and Removal
Easy-to-use plugs with clear instructions help ensure proper installation without hassle.
4
Specialized Features and Pool Type
Some devices are specially designed for in-ground pools, offering wider or more secure seals, while others cater to above-ground s
How to choose your skimmer winterizing device
1
How we picked
These products were evaluated based on their fit compatibility with common skimmer sizes, durability under winter condit
2
Fit and Compatibility
Ensuring your winterizing device matches your skimmer’s size and threading specifications is fundamental.
3
Durability and Material Quality
The harsh winter environment demands robust materials—high-quality plastics or rubber that resist cracking, warping, or
4
Ease of Installation and Removal
Easy-to-use plugs with clear instructions help ensure proper installation without hassle.
5
Specialized Features and Pool Type
Some devices are specially designed for in-ground pools, offering wider or more secure seals, while others cater to abov
Vetted skimmer winterizing devices ·
The best skimmer winterizing devices, compared
★ Winner Swimline HydroTools Skimmer Wi
Best Overall for Versatile Pool Winterization
13compared
11.2 ouncestop item weight
4materials

How We Picked

These products were evaluated based on their fit compatibility with common skimmer sizes, durability under winter conditions, ease of installation, and overall value. We prioritized items that offer secure seals to prevent water ingress, as well as those with simple, straightforward designs suitable for both DIY enthusiasts and homeowners. Products were ranked higher if they demonstrated versatility across different pool types and had positive user feedback. We also considered price points to include options for various budgets, ensuring a balanced selection for every buyer profile.
Everyday → specialist
Everyday & valuePremium & specialist
Which skimmer winterizing device fits you?
The everyday user
All-round, reliable
The enthusiast
Premium & high-performance
The gift-giver
Looks & craftsmanship

Factors to Consider When Choosing Skimmer Winterizing Devices

Selecting the right skimmer winterizing device requires understanding several key factors. The most critical aspect is fit—improperly sized plugs can cause leaks or fall out, risking damage during freezing temperatures. Durability against harsh winter conditions is equally important, especially for in-ground pools exposed to prolonged cold. Ease of installation helps prevent mistakes that could compromise winter protection. Compatibility with your specific skimmer model and size ensures a tight seal, while price and value determine long-term savings. Keeping these considerations in mind will help you choose a device that offers reliable protection with minimal hassle.

Fit and Compatibility

Ensuring your winterizing device matches your skimmer’s size and threading specifications is fundamental. Many plugs are designed for 1.5” and 2” threaded skimmers, so double-check your skimmer’s measurements before purchasing. A proper fit prevents water from seeping in, which could freeze and crack the skimmer or pipe. Devices that are too loose or incompatible may require additional modifications or lead to leaks, increasing repair costs. Consider models that specify compatibility with your pool’s skimmer for peace of mind.

Durability and Material Quality

The harsh winter environment demands robust materials—high-quality plastics or rubber that resist cracking, warping, or degradation over time. Cheaper plugs might be tempting, but they often fail after a season of freezing and thawing cycles. Investing in durable, UV-resistant components can extend the lifespan of your winterization device and save money in the long run. Always check product reviews for indications of material strength and resilience.

Ease of Installation and Removal

Easy-to-use plugs with clear instructions help ensure proper installation without hassle. Features like threaded designs or simple push-in mechanisms can make winterization faster and reduce user error. Consider whether the device requires tools or additional steps that could complicate seasonal setup. The ability to quickly remove and re-install the device each season minimizes maintenance time and reduces the risk of damaging the skimmer during handling.

Price and Overall Value

While budget options can be effective, they might sacrifice durability or fit precision. Conversely, premium devices often provide longer-lasting materials and better seals, but at a higher cost. Balancing price with expected lifespan and performance helps ensure you get good value. For seasonal use, consider whether investing in a slightly more expensive, high-quality device makes sense for your long-term pool maintenance plan.

Specialized Features and Pool Type

Some devices are specially designed for in-ground pools, offering wider or more secure seals, while others cater to above-ground setups. Features like ice guards or extra-wide mouth are beneficial in colder climates, preventing ice damage. Be cautious about generic plugs that may not fit your skimmer correctly, as improper sealing can lead to costly repairs or winter damage. Choose a device aligned with your pool type and local climate for optimal winter protection.

Frequently Asked Questions

How do I know if a skimmer plug will fit my pool?

To determine fit, measure the diameter of your skimmer opening and check your skimmer’s threading specifications—most are either 1.5” or 2”. Many products specify compatibility directly, so compare these measurements before purchasing. If your skimmer has an unusual size or threading, look for adjustable or universal plugs designed to accommodate various dimensions. Proper fit is essential to prevent leaks and ensure winterization effectiveness.

Can I reuse a skimmer winterizing device year after year?

Reusing your skimmer plug is generally possible if it remains in good condition, with no cracks, warping, or damage. Inspect the device after each season for signs of wear, especially the sealing surface. Proper cleaning and storage during the off-season help prolong its lifespan. However, if the material shows signs of deterioration, replacing it prevents potential leaks or ice damage, saving money in the long run.

Are there any risks in not winterizing my skimmer properly?

Failing to winterize your skimmer can lead to water infiltration, which freezes and expands inside the plumbing, causing cracks and costly repairs. It can also damage the skimmer housing itself. Proper winterization devices create a seal that prevents water entry, reducing the risk of structural damage and ensuring your pool remains in good condition for the next season. Skipping this step might save time now but could result in significant expenses later.

What is the best type of skimmer plug for cold climates?

In colder regions, look for wide-mouth or ice guard models that provide extra protection against ice expansion. These devices often have reinforced seals or larger openings to better accommodate ice formation and prevent cracking. Some models also feature built-in ice guards or extra-wide mouths to reduce pressure buildup. Investing in a high-quality, winter-specific plug can greatly reduce the risk of freeze-related damage during harsh winters.

How do I remove my skimmer plug in the spring?

Remove your skimmer plug carefully to avoid damaging the seal or skimmer housing. Typically, you just unscrew or gently pull out the plug, depending on its design. Check for any remaining debris or moisture around the seal area and clean it before re-installing the plug for the next winter. Storing the device in a dry, cool place during the off-season helps maintain its integrity for future use.

Conclusion

For most homeowners seeking a reliable, easy-to-install solution, the Swimline HydroTools Skimmer Winterizing Kit offers a balanced mix of durability and simplicity, making it the best overall choice. Budget-conscious buyers will find the 2 Pack 9” Pool Skimmer Plugs to be a smart, cost-effective option, while those with specific skimmer models or colder climates should consider the Pool Wide Mouth Skimmer Winter Plug for Hayward for a precise fit and added protection. Beginners or those looking for quick, straightforward winterization will benefit from kits like the 3 in 1 Winter Closing Kit. Ultimately, selecting the right device depends on your pool type, climate, and budget, but this guide aims to clarify those choices for a smoother winter season.

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