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The The Filbur FC-0303 is the replacement filter for the Unicel 5CH-203 R. Guaranteed to fit or your money back!
The Unicel 5CH-203 - Comp. Pool and Spa Water Filter has a diameter of 5 3/8 inches and is 8 1/2 inches long. This Unicel pool filter has a closed top and 3 inch Male Pipe Threads (MPT) on the bottom. This Unicel pool filter cartridge contains 30 square feet of filter media. This Unicel filter will keep your pool or spa water clean and clear.