Unicel C-4402 Replacement Filter Cartridge for 20 Square Foot Aqua Spa safety-knives Star-clear plus knob washer

Star-clear plus knob washer

3M Scotch-Brite Roloc Surface Conditioning Disc

Comfort fit design enables a greater range of movement while stretching and bending with reinforcement in high stress areas

Fluorescent orange color increases visibility

3M Scotchgard Anti-Fog Coating lasts longer than traditional anti-fog coatings

Unicel C-4402 Replacement Filter Cartridge for 20 Square Foot Aqua Spa safety-knives Star-clear plus knob washerUnicel C 4402 Replacement Filter Cartridge for 20 Square Foot Aqua Spa Diameter: 4 5 8 inch; length: 9 3 4 inch Top end cap: molded cone handle, 0 inch inner diameter; bottom end cap: open with slots, 1 7 8 inch inner diameter Pleat count: 138; filter media: 4 ounce reemay 2040; filter area: 20 square feet Get more efficient filtration and better water clarity with Unicel filters Longer time between cleanings; meets oem specifications