This replacement filter cartridge comes with a technical specification Filbur# FC-1494, Pleatco # PJC180-M4, Unicel # C-7452, OEM # 42-3799-25. This product is a high performance filter cartridge and can handle a top load of 179 sq. ft. This state of the art 179 sqft TC550 Jacuzzi, Cantar,Competion Tri-Clops Replacement (round) filter is of superior quality as per industry standards. This filter comes with a closed top and a 4 1/16" open hole at the bottom. It is 34 13/16" in length and 7 13/16" 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.