Pentair Skimmer Faceplate Back Gasket | Admiral S15 | CS-301 Inflated Loungers also check the Mender Nuts

also check the Mender Nuts included in this kit — both components wear together and replacing them as a matched set extends the service interval

Press firmly against hard surface until plastic is punched through

and more NSF 50 certified models than any other brand

Don't forget to make sure you have Phosphate Removers on hand for when your reading is too high

Outside treads swing up into an upright position for security

Pentair Skimmer Faceplate Back Gasket | Admiral S15 | CS-301 Inflated Loungers also check the Mender NutsThe Pentair CS 301 is the OEM replacement back gasket for the Admiral S15 pool and spa skimmer faceplate, originally manufactured under the American Products brand now part of the Pentair portfolio. This gasket seats behind the skimmer faceplate, creating a watertight seal between the faceplate and the pool wall. It is designed for the large (10 hole) faceplate configuration and does not include a double wall gasket. Specifications Pentair Part Number