This replacement filter cartridge comes with a technical specification Filbur# FC-9898, Unicel # FS-3037 and OEM # FS3037. This product is a high performance filter cartridge can handle. This state of the art Sta-Rite System 3 model S7D75 DE filter set is of superior quality as per industry standards. This filter comes with semi-circular handle at the top and a 1 1/4" Open Hole at the bottom. It is 12" long and 4 5/8" wide. It efficiently provides you dust, sand and worm free clean and clear water solution for your pools and spas. The best in the industry this product matches all your water purifying needs and offers quality with cleanliness and hygiene par excellence.