SimPoolTec SW-Series Widemouth AG Skimmer Plug
Best winterizing solution for owners of compatible widemouth above-ground pool skimmers.
Ensure your above-ground pool is properly winterized with the SimPoolTec SW-Series Widemouth AG Skimmer Plug. This essential closing accessory creates a secure seal for your skimmer opening, effectively preventing water, debris, and pests from entering during the off-season. Designed to fit skimmer openings measuring 11-3/8" W x 5-3/16" H, it is specifically compatible with Hydro-Tools 8939 widemouth aboveground skimmers from 2014 and earlier. Enjoy peace of mind knowing your pool is protected until opening day.
$29.99
Owner Satisfaction
4.6
/ 5
Category Rank
29
/ 482
#29 in Pool Skimmers
Price vs Category Average
-40%
Below average
Fits skimmer openings
11385316
/ -/" W x -/" H
Who it's for
- Pool owners looking to save time during winterization
- Homeowners needing reliable protection against freezing pipe damage
- Budget-conscious buyers seeking long-term, reusable maintenance solutions
Who should skip it
- Owners of non-standard or incompatible skimmer models
- Users with older pools prone to heavy scale buildup
- Shoppers prioritizing the lowest upfront cost for winter supplies
Performance breakdown
Seal Integrity
Creates a reliable, watertight barrier against harsh winter elements.
Installation Simplicity
Straightforward DIY design makes off-season closing quick and painless.
Compatibility Precision
Highly specific fit requires exact matching to older skimmer models.
Material Durability
Robust construction withstands freezing temperatures and seasonal debris pressure.
Pest Protection
Effectively blocks unwanted critters from nesting in your skimmer housing.
Winterization Efficiency
Essential component for protecting pool plumbing during the off-season.
Key Specs
Fits skimmer openings
11-3/8" W x 5-3/16" H
Compatibility
Hydro-Tools 8939 (2014 and prior)
Intended Pool Type
Above-ground
Model Number
AGWM-SW
Manufacturer Part Number
AGWM-SW
Installation Requirement
DIY
Skimmer Type
Wall Mount
Skimmer Head Width
11.375 inches
Features
- Secure closure for pool winterizing
- Blocks water and debris entry
- Designed for widemouth aboveground skimmers
- Specific fit for Hydro-Tools 8939
- Prevents pest intrusion
- Essential for off-season pool protection
What customers say
Pool owners overwhelmingly approve of this skimmer plug for simplifying winterization. The core theme is exceptional ease of use; the simple push in design creates a quick, reliable, watertight seal, saving significant time compared to older methods. Reviewers value this simplicity, which makes pool closure manageable. Material quality, featuring durable rubber and robust plastic, inspires confidence in its longevity against freezing conditions. While most find the fit perfect, a few users noted minor compatibility sensitivity with specific skimmers. Despite these small fitment caveats, the convenience and protection offered provide strong value, positioning this as a premium, reliable tool that successfully streamlines pool closing.
Know before you buy
No, this plug is specifically engineered for the Hydro-Tools 8939 widemouth skimmer manufactured in 2014 or earlier. It is designed to fit an opening measuring exactly 11-3/8" W x 5-3/16" H, so you should verify your skimmer's dimensions before purchasing.
No, this is a DIY-friendly product designed for simple installation. It is intended to create a secure seal over your skimmer opening without the need for complex tools or professional assistance.
Using a dedicated plug prevents water from entering the skimmer housing, which protects the unit from freeze-thaw damage during the winter. It also acts as a barrier against debris, leaves, and pests that might otherwise accumulate in your skimmer during the off-season.
No, this model is specifically designed for above-ground pool wall-mount skimmers. It will not provide a proper seal for the different dimensions and mounting styles found on in-ground pool skimmers.
This plug is compatible with Hydro-Tools 8939 models produced in 2014 or earlier. If your skimmer was manufactured after 2014, the dimensions or mounting design may have changed, making this specific plug unsuitable.
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Ask Hayley anything about this product before you decide.
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$30