The Unicel C-5330 R is a compatible replacement for the following pool and spa filter cartridges:
The Unicel C-5330 Comp. Pool Water Filter Cartridge is a replacement pool filter cartridge with 30 sq. ft. of media area that traps contaminants in pool & spa water in its sharp pleat folds. This compatible Unicel pool filter, also known as the Filbur FC-3748, measures 5 3/4" x 12 1/8" with 2" Open top and bottom styles.