Hayward EasyClear Filter Cover O-Ring (CX400G) aquacal and 335B heater applications where

and 335B heater applications where the supported vent transition component for an indoor setup needs replacement

The Polaris Letro compatibility gives this tool practical value because specialty fitting tools work best when they match the intended cleaner or fitting family closely

Supports compact and organized plumbing layout

That keeps the repair targeted and straightforward

High limit sensors provide an additional layer of protection by monitoring temperature conditions

Hayward EasyClear Filter Cover O-Ring (CX400G) aquacal and 335B heater applications whereThe Hayward EasyClear filter cover O ring is designed for compatible filter applications where the cover needs dependable sealing against the body. An O ring like this is useful because it helps maintain a cleaner seal at the lid connection, supporting more reliable filtration and easier service access. This replacement is especially useful when the original O ring is flattened, brittle, cracked, or leaking. Replacing it can help restore the condition