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The Filbur FC-0686 is the replacement filter for the Pentair R173215 R. Guaranteed to fit or your money back!
The Pentair R173215 Comp. Pool & Spa Filter Cartridge has a diameter of 10 1/16 inches, and a length of 23 5/8 inches. This spa filter cartridge has open top and bottom holes with diameters of 6 inches. This pool filter replacement will keep the water in your pool or spa clean and clear.