FIT:(3) Cartridge Pool/Spa WATKINS HOT SPRING C6430 UNICEL C-6430 PLEATCO PWK30 FC-3915
Also replaces the following filters: Watkins 30 / Hot Springs - OEM Part # 31489 / 71825 / 71826 / 75041 / 73178 / Tri-X / 0969601 / APCC7095 / 13004 / APCC7095M Unicel - C-6430 (C6430) Filbur - FC-3915 (FC3915) Pleatco - PWK-30 (PWK30)