HAYWARD SWIM CLEAR SINGLE CARTRIDGE FILTER O-RING FOR FILTER HEAD (O-RING ONLY) SUITS C100S/C150S/C200S

Replacement filter head O-ring for Hayward SwimClear single cartridge filters (C100S, C150S, C200S). Seals the filter head to the tank body. Replace when the O-ring is cracked, flattened or when air or water is escaping at the head joint.