The Unicel C-6430RA R is a compatible replacement for the following pool and spa filter cartridges:
The Unicel C-6430RA Comp. Pool Water Filter Cartridge is constructed with 30 sq. ft. of premium media area and sharp pleat folds to capture contaminants in your swimming pool and spa water. This pool filter cartridge, also known as the Filbur FC-3915M, measures 6" in diameter and 10 1/2" in length with 1 15/16" Open top and bottom styles. This compatible Unicel pool filter also features Microban antimicrobial protection to fight odors and prevent the growth of black mold and bacteria.