The Unicel C-7633 R is a compatible replacement for the following pool and spa filter cartridges:
The Unicel C-7633 Comp. Pool Filter Cartridge is constructed with pleated Reemay filter media and reinforced antimicrobial end caps. This pool filter cartridge improves water clarity and quality through 33 square feet of premium media. This compatible Unicel pool filter, also known as the Filbur FC-2120, measures 7" x 14".