The Filbur FC-1611 is the correct compatible replacement for the following water filters:
The Filbur FC-1611 Sonfarrel 25 Pool & Spa Filter is a compatible replacement pool and spa water filter cartridge built with antimicrobial end caps that are reinforced for added strength and specially treated to fight the spread of bacteria and mold. This Filbur pool filter's wide support bands help provide the optimum flow of water and are very break-resistant.
Filbur FC-1611 Sonfarrel 25 Pool & Spa Filter specifications:
This compatible Sonfarrel 25 filter's polyester media increases water clarity and reduces dirt particles through sharp pleat folds. In addition, the reinforced PVC center cores of this Filbur spa filter provide increased debris loading and prevent the collapse of the cartridge.