The 5 ¾ inch wide and 10 inch long replacement filter cartridge is best suited to be used at a 15 square feet Intex Recreation Model 51/52, 520R/530R- Type B and the wet set. Manufactured with the technical specifications complied with OEM# 59905, the respective replacement filter cartridge can serve as the replacement for Filbur# FC-3752, Pleatco# PIN20 and Unicel# C-5315. Further, the product is open ended from both top and bottom with holes of 1 7/8 inches each.