Unicel C-4950-4 Replacement Filter Cartridge (4 Pack)

50 sq. ft. Rainbow, Waterway plastics, custom molded products. Note: 50 sq. ft. C-4950 is an upgrade to 25 sq. ft. C-4326 c-4625 cartridges. Replacement for: accent spas; acryx-maax spas (Canada); alps spas; American spas; Apollo spas; aqua Mystic; aqua tech spas; aquafarm-infinity spas; Baja spas; blue falls mfg. (Canada); blue Pacific spas; bullfrog spas; Cal spas; charisma spas; coast spas (Canada); Coleman spas 3301-2145; discovery spas; dynasty spas; freedom spas (note: C-4950-4 dated after 1993); haughs; Hawkeye spas; held or spas; hydro spa; j.E.M. Spas; leisure Bay spas; marathon spas; millennium spas; moon water spas; Morgan spas; northwest spas; pageant spas; Pentair pool prod R173434; Pentair pool prod R173434; Pentair pool prod R173434; Pentair pool prod R173434; Pentair pool prod – rainbow plastics 17-2380; Pentair pool prod – rainbow plastics 17-2380; Pentair pool prod – rainbow plastics 17-2380; Phoenix spas; qca; river Valley spas; safari spas; Seahorse spas; Sequoia design; signature spas; Sonoma spas; spa crest; streamline spas; sunbelt spas; sun country spas; Sundance spas 6540-471; sunrise spas; sunset spas; superior spas; Tiara spas; us spas; us tooling spa; warm springs spa; Waterway plastics 817-5000; wind river spas.