Guardian Pool Spa Microban Filter Replaces Unicel C-5345, C-5345RA, FC-2970, FC-2970M, Pleatco PLBS50, PLBS50-M - Antimicrobial Replaces Unicel C-5345, Filbur FC-2970, Pleatco PLB-S-50 Dimensions: Length 10-1/8", Diameter 5-5/16", Top opening 2-1/8", Bottom opening 2-1/8" 50 sq. ft. filtration area Antimicrobial filtration fabric (equivalent to Reemay with Microban Antimicrobial Product Protection) Dynasty, Garden Leisure, Leisure Bay, Pentair, Rainbow, Rec Warehouse, Rocky Mountain, Waterway Plastics