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The Filbur FC-1492 is the replacement filter for the Jacuzzi Brothers JB 42379923 R.
Guaranteed to fit or your money back!
The Jacuzzi Brothers 42379923 Comp. Filter Cartridge has a diameter of 7 3/4 inches, and a length of 22 3/4 inches. This spa filter cartridge has a closed top, and an open bottom with a diameter of 4 inches. This pool filter replacement will keep the water in your pool or spa clean and clear.