Ilter Unicel 4CH-949Swimming Pool Spa Waterway Replacement Filter Cartridge

Code 4CH-949 (Darlly 42522) Spec with a knob on the top, front access filter Material pool spa standard filtration media Color blue end caps spa filter cartridge, hot tub filter, swim spa filter 4CH-949 Unicel code: 4CH-949 (Darlly 42522) durable end caps & unparalleled resistance against harsh water treatment chemicals; ABS/PP center core for excellent collapse strength; highly-consistent perfermance; more efficient water filtration, less wear on pumps, ultimately save money in the long run! Suitable for below spas: Dynasty Spas Four Winds Spa Waterway Plastics 817-4050 Rising Dragon Filter Specifications: filtration area    50 square feet outside diameter    4-15/16'' length    13-1/2'' top hole size    v-groove semi-circular handle bottom hole size    1-2'' female SAE thread filter media    pleated pool spa filtration fabric, high dirt-holding capacity (Note: Do not include handles, screw-in adapters, etc. when measuring length.)