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The Custom Molded Products CMP 33521 R is a compatible replacement for the following pool and spa filters:
The Custom Molded Products 33521 - Comp. Pool Filter has top and bottom open holes with diameters of 2 1/8 inches. This pool filter replacement has a diameter of 4 15/16 inches and a length of 13 5/16 inches. This Custom Molded Products filter will keep the water in your pool or spa clean and clear.