The Unicel C-3608 R is a compatible replacement for the following pool and spa filters:
The Unicel C-3608 Comp. Alcove Pool & Spa Filter is constructed with 8 sq. ft. of pleated Reemay filter media to improve the clarity and quality of your swimming pool/spa water. This compatible Unicel spa filter, also known as the Filbur FC-3076, measures 3 1/4" x 9 3/4" with a 1 1/16" Open top style and 1 1/4" SAE bottom style. This pool filter cartridge also features reinforced antimicrobial end caps and reinforced extruded PVC center cores.