Zodiac Jandy CL/CV/DEV Tank Body O-Ring (R0357800) laingthermotech Hayward valve nut

Hayward valve nut

Part number 550-8700 for identification

Useful when the original basket is cracked or missing

Reference replacement part number 25-4041-BI-TI when comparing against existing equipment or service documentation

Helps secure and remove the strainer lid

Zodiac Jandy CL/CV/DEV Tank Body O-Ring (R0357800) laingthermotech Hayward valve nutDesigned for compatible Jandy CL CV DEV Tank Body O Ring applications, this replacement sealing component helps restore a tight, dependable fit where water pressure and repeated service can wear down older rubber parts. O rings are small pieces, but they often determine whether a filter, valve, or plumbing connection runs cleanly or develops slow leaks after reassembly. Replacing the worn seal with the correct part number R0357800 can help protect