The Aladdin 17507 R is a compatible replacement for the following pool and spa filters:
The Aladdin 17507 Comp. Pool Water Filter Cartridge has top and bottom open holes with diameters of 4 1/16 inches. This pool filter replacement has a diameter of 8 1/2 inches and a length of 17 1/2 inches. This spa filter cartridge will keep the water in your pool or spa clean and clear.