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Houses impeller and diffuser components
Designed for compatible Hayward System III models
resistant to wear and corrosion
579 CPB0004A Generation II PPM4 Up to 60
It is installed in the pool wall or floor and connects to the suction plumbing feeding the pump
Hayward Star-Clear II Filter Head Dome Lid with Air Relief | CX800C Spa Air Controls Houses impeller and diffuser componentsWhat This Part Is Used For The Hayward CX800C Star Clear II Filter Head Dome Lid with Air Relief serves as the upper housing assembly for compatible Star Clear II filter systems. It includes an integrated air relief valve for controlled venting. Why This Part Matters A cracked lid or failed air relief can cause leaks or improper pressure release. Replacing it restores a secure seal and safe operation. This supports consistent filtration performance.