Length: 8"Diameter: 9"Top opening: 2-1/8"Bottom opening:  2" slip   Replaces popular brand part numbers: Unicel C-8450 Filbur FC-3310 Pleatco PCS50N Features: 50 sq. ft. of high-quality filtration Fabric Expansive Flow™ core Alternative filter names: 100593, 3301-2261, 17-175-1206, APCC7161, 15014, PCS 50N, PCS50-N   Used in pools/spas made by: California Cooperage, Coleman Spas, Maax Spas (Canada), Maax Spas of AZ & other manufacturers   By Guardian Filtration Products • 809-193