Unicel Replacement Filter Cartridge 25 sq. ft. | Freeflow Spas CLX | 4CH-23 C7458 To a great extent

To a great extent

metal stains (including rust)

Reemay 2040 polyester media and open ends on both top and bottom

Turbidimetric 30

Make additions of 2-4 fluid ounces of this product per 10

Unicel Replacement Filter Cartridge 25 sq. ft. | Freeflow Spas CLX | 4CH-23 C7458 To a great extentThe Unicel 4CH 23 is a 25 sq. ft. replacement filter cartridge precision engineered for Freeflow Spas CLX systems. With 212 pleats of 3 oz. Reemay 2033 spunbond polyester media packed into a compact 6 5 8" length, it delivers consistent water clarity and reliable flow in top load spa filter housings. The closed top and 1 1 2" MPT bottom ensure a secure, leak free fit with no adapters required. Specifications Filter Area 25 sq. ft. Length 6 5 8" Outer