Unicel C-4317 Replacement Filter Cartridge for Intex PureSpa Type S1 | 5 Sq. Ft. | 2 15/16" Vacuum Heads this partial grid delivers reliable

this partial grid delivers reliable filtration performance and precise dimensional compatibility for the universal grid footprint

Severe Algae Treatment: 32 fl

Free & Combined Free chlorine is the active form of chlorine for disinfecting water

Immune to the corrosive effects of Salt Water Chlorinator Systems

Clears cloudy water quickly

Unicel C-4317 Replacement Filter Cartridge for Intex PureSpa Type S1 | 5 Sq. Ft. | 2 15/16" Vacuum Heads this partial grid delivers reliableThe Unicel C 4317 is a compact 4000 Series replacement filter cartridge engineered for Intex PureSpa inflatable hot tub and spa systems. With 120 sharp, uniform pleats of 3 oz. Reemay 2033 polyester media packed into a 4 1 4" diameter form factor, it delivers 5 sq. ft. of filtration surface area maximizing water clarity in portable spa applications where every square foot counts. Specifications Filter Area 5 sq. ft. Length 2 15 16" Outer Diameter 4 1