Unicel 4000 Series 20 sq. ft. Replacement Filter Cartridge for Hayward MicroStar-Clear C200 | C-4320 FG1005 treat twice a week with

treat twice a week with the recommended Cloudy Water Dosage

Do not exceed 2ppm

Specially formulated to be non-melting

Buna elastomers provide excellent chlorine resistance and reliable performance in standard residential pools operating at normal temperatures

Use with Natural Chemistry's METALfree for the ultimate stain-fighting combination

Unicel 4000 Series 20 sq. ft. Replacement Filter Cartridge for Hayward MicroStar-Clear C200 | C-4320 FG1005 treat twice a week withThe Unicel 4000 Series C 4320 delivers 20 sq. ft. of filtration surface area through 110 precision pleats of 3 oz. Reemay 2033 spun bonded polyester engineered as a direct replacement for Hayward and American Products in line filter systems. The increased pleat density maximizes debris capture and extends cleaning intervals, keeping your pool water clear with consistent flow and pressure performance. IMPORTANT: OEM DIMENSIONAL DIFFERENCE The Hayward