The Intex WM-3779 R is a compatible replacement for the following pool and spa filters:
The Intex WM-3779 Comp. Replacement Pool Filter has a diameter of 4 1/4 inches, and a length of 3 3/4 inches. This spa filter has both an open top and bottom, with both having a diameter of 2 1/8 inches. This pool filter cartridge will keep the water in your pool or spa clean and clear.