Inground Standard Winter Skimmer Plug - 5-5/8 x 7-9/16 Inches reagent-size_Tab Strip they are strong enough to

they are strong enough to stand up to extreme weather conditions and they stay cool to the touch in the hot sun

It is light enough to easily place on the bottom of the pool

Rinse - This position is only used with sand filters and is designed to flush stray sand from system before returning to filter operation after backwashing

Conditioner

Inground Standard Winter Skimmer Plug - 5-5/8 x 7-9/16 Inches reagent-size_Tab Strip they are strong enough toThe Standard Inground Winter Skimmer Plug securely fits into your skimmer opening using an exclusive Rovaseal thermo insulated layer, ensuring a water tight seal. Just press the Skimmer Plug flush all the way in against your existing skimmer faceplate. No tools are required and you don't need to drain the skimmer! Made of ABS plastic, the durable outer plate creates a 100% air tight seal preventing freezing during the winter months. This material is