Length: 14-3/4"Diameter: 5-5/16"Top opening: 2-1/8"Bottom opening: 2-1/8"       Built to meet OEM specifications, the Guardian 514-223 features: 75 sq. ft. of high quality filtration fabric Exclusive Expansive Flow™ core Break-resistant Guardian banding Replaces popular brand part numbers: Unicel C-5374 Filbur FC-2971 Pleatco PLBS75  Alternative filter names: 817-0015, 303433, R173600, S2 Spa, G2 Spa, AK-40081, AK40081, 17-175-2201, APCC7256, 17540, APCC7256M, 090164999241, SD-01255, PLBS 75, PLBS75-Z, PLBS75 MB PDC560-AFS Used in pools/spas made by: Cal Spas, Leisure Bay Spas, Maax Spas of AZ, Pentair Pool Products, Rainbow Plastics, Rec Warehouse, Waterway Plastics & other manufacturers   By Guardian Filtration Products in the USA • 514-223