This Replacement filter cartridge can replace Unicel # C-4347 and Filbur FC-2630 and meets OEM # C4347 specifications. This 14 7/8 inch long and 4 15/16 inch wide filter cartridge can handle the top load of 45 square feet and is best fit for Santanna, Conger Bros. With its open holes of 2 1/8 inch each this filter cartridge provides you clean and clear water for your pools and spas. Very easy to install this filter cartridge is made of high quality of materials.