Unicel C-9401 Replacement Filter Cartridge | 9000 Series | 75 sq. ft. C7489 Stainfree is a citric acid

Stainfree is a citric acid product that removes metal staining on pool liners and finishes

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Unicel C-9401 Replacement Filter Cartridge | 9000 Series | 75 sq. ft. C7489 Stainfree is a citric acidThe Unicel C 9401 is a 9000 Series 75 sq. ft. replacement filter cartridge engineered for large capacity residential and commercial pool filtration systems. With 202 pleats of heavy duty 4 oz. Reemay 2040 polyester media, this coreless cartridge delivers exceptional dirt holding capacity and extended service life in demanding filtration environments including the Waterway Plastics Clearwater 75 sq. ft. filter. Specifications Filter Area 75 sq. ft.