The Sonfarrel 40 R is a pool and spa water filter cartridge that is the correct compatible replacement for the following filters:
The Sonfarrel 40-220042 Comp. Pool & Spa Water Filter has an outer diameter of 4 15/16 inches, with a length of 11 3/8 inches. This Sonfarrel pool filter has an open top and bottom with both having diameters of 2 1/8 inches. This Sonfarrel 40-220042 filter contains 35 square feet of filter media.