Hayward (CX400G) Easy-Clear Filter Head Replacement O-Ring || O-504

Hayward (CX400G) Easy-Clear Filter Head Replacement O-Ring || O-504 Hayward (CX400G) Easy-Clear Filter Head O-Ring || O-504-BAGGED CX400G Lid O-ring for Hayward Filter Tank & Pump Approximately 7.48" ID x7.87" OD x 0.21" Thickness Material: Buna-N (nitrile butadiene rubber) Fits Easy Clear cartridge filter lid and NorthStar,strainer cover lid oring Fits: Hayward Easy Clear C400 and C550 Filter head Cover Pre 2003 Same Part: Speck Pump (2921141222) Casing O-Ring