Unicel 4000 Series 20 sq. ft. Replacement Filter Cartridge | 4CH-925 C3310AM concentrated dichlor granular chlorine solution

concentrated dichlor granular chlorine solution that effectively sanitizes and shocks hot spa water to help keep it clean and clear

5″ Throat

Pentair Part Number 152165 Part Name Assembly

filter on units manufactured after November 1998 only

Sturdy vinyl handles

Unicel 4000 Series 20 sq. ft. Replacement Filter Cartridge | 4CH-925 C3310AM concentrated dichlor granular chlorine solutionThe Unicel 4000 Series 4CH 925 is a 20 sq. ft. replacement filter cartridge engineered for top load filter systems built by Strong Industries. With 190 precision pleated folds of 3 oz. Reemay 2033 spunbond polyester media, this cartridge delivers consistent water clarity and long lasting filtration performance in a compact 7 1 4" profile. Specifications Filter Area 20 sq. ft. Length 7 1 4" Outer Diameter 4 5 8" Top Inner Diameter N A Bottom Inner