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The Filbur FC-2390 is the replacement filter for the Waterway 50 R.
Guaranteed to fit or your money back!
The Waterway 50 Comp Replacement Pool Filter Cartridge has a diameter of 4 15/16 inches, and a length of 13 5/16 inches. This spa filter has both an open top and bottom, and each has a diameter of 2 1/8 inches. This pool filter replacement will keep the water in your pool or spa clean and clear.