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The Pentair R173216 R is a compatible replacement for the following pool and spa filters:
The Pentair R173216 Comp. Pool Filter Replacement has top and bottom open holes with diameters of 6 inches. This pool filter replacement has a diameter of 10 1/16 inches and a length of 31 1/8 inches. This spa filter cartridge will keep the water in your pool or spa clean and clear.