Intex 59905CS N/AA Full Case of 6 Brand Type B Pool Filter Cartridges M, White Full Case of 6 Intex Brand type B Filters Cartridges, Brand New Individually Wrap. For Intex Model 51, 633, 621, 520, 530 & 8111 Filter Pumps 5-3/4" diameter x 10" length w/ 1-15/16" id center core. approx 70 Pleats w/ total 14 sq. ft of filter media manufactured w/ 100% polyester material Washable & Re-useable