This replacement filter cartridge comes with a technical specification, Filbur# FC-0360, Pleatco # PWW100ST-P3, Unicel # 6CH-941 and OEM # 25253, 25254. This product is a high performance filter cartridge. This state of the art filter 45 sq ft frt access Skim filter stacked top load (upper) Waterway & 45 sq ft Single Port Frt Access Skim Filter Custm Mold Prod is of superior quality as per industry standards. This filter comes with a semi-circular handle at the top and 1¾” Male Slip Fitting at the bottom. It is 8 1/4" long and 6" 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.