The Waterway Plastics WW 817-0075N R is a compatible replacement for the following pool and spa filters:
The Waterway 817-0075N Comp. Pool Filter Cartridge has a diameter of 8 15/16 inches, and a length of 17 3/8 inches. This spa filter cartridge has an open top and bottom with diameters of 4 inches. This pool filter replacement will keep the water in your pool or spa clean and clear.