Pentair Sta-Rite Biguanide Resistant Trap Lid (C3-185P3) spacovers A properly selected Perma Cast

A properly selected Perma Cast relief valve helps preserve intended fit and contributes to more dependable structural pressure management

Key fitment information includes part number 672-7401

The Waterway 515-7257 tank body is designed for compatible Clearwater II sand filter system applications and comes in gray

This replacement part services wear points on compatible Polaris UltraFlex cleaner components

Pentair Sta-Rite Biguanide Resistant Trap Lid (C3-185P3) spacovers A properly selected Perma CastReplace a worn pump trap lid with this biguanide resistant version for compatible Sta Rite systems. The lid helps seal the strainer pot, maintain pump prime, and allow visual inspection of basket condition while standing up to pools using biguanide sanitizing systems. This part is a strong choice when the original lid is cracked, cloudy, warped, or no longer sealing properly. Pairing the lid with the correct O ring and a clean sealing surface helps