Length: 28-3/16"Diameter: 8-15/16"Top opening: 4"Bottom opening: 4"   Built to meet OEM specifications, the Guardian 828-205 features: 175 sq. ft. of high-quality Filtration Fabric Expansive Flow™ core Break-resistant Guardian banding  Replaces popular brand part numbers: Unicel C-8417 Filbur FC-1294 Pleatco PA175 Alternative filter names: CX1750-RE, C1750-RE, 25230-0175S, SD-00828, SD-00829, C-1750RE, Hayward Star-Clear Plus C1750, Sta-Rite PXC-175, 17-175-1337, 17-175-1341, APCC7324, 27501, SD-00556, 090164174006, APCC7450, PA175-4, PA 175, PXC175, PXC-150   Used in pools/spas made by: Hayward, Pentair Pool Products, Sta-Rite & other manufacturers   By Guardian Filtration Products • 828-205