Pentair C/CC/D Series Trap Lid O-Ring [Pkg 184/184C] (3642220457) gridcontrols A focused replacement like this

A focused replacement like this is especially useful when the surrounding wet-end assembly remains serviceable and the weakness is isolated to the diffuser itself

Once applied

0 SPL two-speed 9

When the spa is no longer heating the way it should

Hayward booster pump impeller

Pentair C/CC/D Series Trap Lid O-Ring [Pkg 184/184C] (3642220457) gridcontrols A focused replacement like thisPentair C CC D Series Trap Lid O Ring [Pkg 184 184C] is a genuine Pentair sealing component designed for compatible pool and spa equipment. O rings and gaskets are small parts, but they play an important role in helping create a dependable seal between equipment surfaces. Replacing a flattened, brittle, stretched, or leaking seal can help reduce water loss, air intrusion, and service issues. This replacement part is useful for routine maintenance,