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The Filbur FC-1920 is the replacement filter for the Pentair Pac Fab 17-4981 R.
Guaranteed to fit or your money back!
The Pac Fab 17-4981 Comp Replacement Pool & Spa Filter has a diameter of 7 7/8 inches, and a length of 11 1/8 inches. This spa filter cartridge has both an open top and bottom, and each has a diameter of 3 1/16 inches. This pool filter replacement will keep the water in your pool or spa clean and clear.