This Replacement filter cartridge can be served as the replacement for Filbur# FC-3748, Pleatco# PIN28 and Unicel# C-5330. Further, this respective product of pool filters can be used in a 30 square feet Intex Recreation model 520/530, Krystal Klear model 520/530 and Wet Set model 520/530. Its technical specifications are in compliance with OEM# 58601 and the physical specifications include 5 ¾ inch width, 12 inch length and holes of 1 7/8 inch at both the ends.