The Dough 312-1003 R is a compatible replacement for the following pool and spa filters:
The Doughboy 312-1003 Comp. Replacement Pool Filter has a diameter of 6 15/16 inches, and a length of 22 3/8 inches. This spa filter has a closed top with a string handle, and an open bottom with a diameter of 2 3/8 inches. This pool filter cartridge will keep the water in your pool or spa clean and clear.