Description
Coast Spas o-ring for the top-load filter lid that seals the lid to the housing so the filter holds pressure and water cannot slip past the cartridge. Made from EPDM rubber, it tolerates sanitizers like chlorine and bromine as well as salt, hot water and sunlight. Plan to swap it about once a year or whenever it looks flattened, cracked or starts to seep. Sold individually.
Search: top load lid seal, filter lid o-ring, hot tub filter seal, spa filter housing gasket