Length: 23-1/4"Diameter: 8-15/16"Top opening: 4"Bottom opening: 4"   Built to meet OEM specifications, the Guardian 823-180 features: 125 sq. ft. of high-quality Filtration Fabric Exclusive Expansive Flow™ core Break-resistant Guardian banding Replaces popular brand part numbers: Unicel C-8412 Filbur FC-1293 Pleatco PWWCT125 Alternative filter names: 817-0125N, 817-0125P, Clearwater II 125, Pro Clean 125, 17-175-1334, PCCF-125, 090164863009, SD-00733, 090164863047, 690164992848, 090164863030, SD-00732, PWWCT125-4, PWWPC125, PWWPC125-4, PWWPC125-M   Used in pools/spas made by: Leisure Bay Spas, Rec Warehouse, Waterway Plastics & other manufacturers   By Guardian Filtration Products • 823-180