The Rainbow 17-2633 R is a compatible replacement for the following pool and spa filters:
The Rainbow 17-2633 Comp. Pool Water Filter Cartridge has a diameter of 4 15/16 inches, and a length of 26 11/16 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.