Looking for the right skimmer plug to winterize an above-ground pool? This guide identifies five top options that help keep skimmers dry, protect piping, and prevent freeze damage. Each pick is best for different setups, from universal fit plugs to specialized winterizing caps. Use these selections to prevent leaks and costly repairs while maintaining pool integrity through cold months.
Summary table of selected products:
| Product | Best For | Included Sizes |
|---|---|---|
| QJPT Wide Mouth Skimmer Plug | Most versatile, above-ground pools with multiple brand fits | 11-1/2″ W x 4-7/8″ H |
| Gizzmo MWUG Ultra Skimmer Freeze Protection | High-compatibility, universal skimmer protection | Fits most skimmers |
| FarShiller Pool Skimmer Plug | Above-ground and in-ground pools, dual-size | 1-1/2″ and 2″ threaded skimmers |
| Omoojee 3 Pcs Pool Plugs | All-in-one bundle for multiple line types | 1″, 1.5″, 2″ |
| XtremepowerUS Universal 1.5″ Pool Plug Cap | Universal return line plug for common brands | 1.5″ NTP male threaded |
QJPT Wide Mouth Skimmer Plug

The QJPT Wide Mouth Skimmer Plug is designed for above-ground pools with a large mouth fit. It claims compatibility with Hayward SP1091WM, AGWM-H2, Aquador 1010, Kokido K002WBX, Poolstyle PS002, and Waterway Flo-Pro ll skimmers. This plug helps keep the skimmer and piping dry through winter without draining pool water, reducing the risk of freeze damage. Best for pool owners seeking a simple, universal winterizing solution that covers multiple skimmer models. Caution: verify your skimmer dimensions before use to ensure a snug seal.
1 1/4” – 2” Winter Plug #7-10

The JimysCo plug uses a commercial-quality steel top with bolts and wings, designed for 1 1/4″ to 2″ openings. It aims to prevent freezing by compressing a rubber seal around the opening. Best for users who want a heavy-duty, durable winterizing option for higher-use pools. Limitation: heavier construction may be less convenient for quick seasonal swaps.
XtremepowerUS Universal 1.5″ Pool Plug Cap

This universal cap is intended for winterizing both above-ground and in-ground pools. It fits 1-1/2″ return lines with NTP threading and is compatible with major brands like Hayward and Pentair. The plug includes an O-ring for a sealing surface. Best for pool owners seeking a simple, standard solution with broad compatibility. Choose this if you want a straightforward, widely compatible cap. Limitation: verify thread compatibility with your specific return line before purchasing.
FarShiller Pool Skimmer Plug

The FarShiller plug offers dual-size compatibility for 9-inch skimmers with 1 1/2″ and 2″ threading. It supports both above-ground and inground pools, providing a watertight seal to prevent freezing and deter leaves and debris. Best for mixed-pool setups needing flexibility across skimmer sizes. Caution: ensure the 9-inch model fits your skimmer intake before selecting.
Omoojee 3 Pcs Pool Plugs

The Omoojee bundle includes 1″, 1.5″, and 2″ plugs plus a stainless steel bolt for durable performance. This set is designed to protect above-ground pools with multiple line types during winter. Best for budget-conscious buyers who want a complete size range in one purchase. Limitation: rubber plugs can wear over time; inspect seals before reuse each season.
Buying Guide
What to look for when choosing a skimmer plug for an above-ground pool:
- Size compatibility: Confirm your skimmer’s mouth diameter and threading to ensure a snug fit.
- Material and seal: Rubber plugs with an O-ring seal provide better waterproofing but may wear after multiple seasons.
- Ease of use: Quick-install plugs save time during seasonal changes but may sacrifice a perfect seal if not fitted properly.
- Durability: Metal-top or heavy-duty designs resist impact and weather but can be heavier to handle.
- Compatibility: Some plugs are marketed as “universal” but may still require verification for your model.
Practical Tips
- Test fit before freezing conditions set in; a tight seal minimizes ice-related damage.
- Inspect O-rings and seals annually; replace worn components to prevent leaks.
- Label different plugs for quick winter season swaps between return lines and skimmers.
FAQ
- Q: Are skimmer plugs universal for all above-ground pools?
A: Not always. Check the mouth size and threading; some plugs fit multiple brands, while others are model-specific. - Q: How do I know which size plug to buy?
A: Measure the opening diameter of your skimmer and identify the corresponding plug size or consult product compatibility notes. - Q: Can a skimmer plug be used for both above-ground and inground pools?
A: Some plugs are marketed as dual-use; verify compatibility with your pool type and skimmer model. - Q: Do plugs require maintenance?
A: Yes. Inspect seals before each season and replace worn seals or rubber components to preserve a watertight seal. - Q: Is it better to use a bundled set or individual plugs?
A: Bundles offer a range of sizes and value, especially for multi-line configurations; individual plugs may suit a single-pool setup. - Q: What is the risk of using a poorly fitting plug?
A: An ill-fitting plug can leak, allowing water intrusion or freezing damage, and may require more time to secure properly.