Length: 32 7/8 "; Outer Dimension: 7"; Top: 3" Open; Bottom: 3" Open. Specifications: Filtration Area: 125 Sq. 100% American Made and Sourced. Great Seal: We use soft plastisol end caps to allow for a better seal on top and bottom, this will reduce water bypass and ensure your filter works as effectively as possible. Hayward CX1260, Unicel C-7495, Filbur FC-1296, Pleatco PA126.All American Cartridge is an independent brand.