Fluval Bio-Foam Max for 406, 407 Canister Filter, 2-Pack

Designed specifically for the 407 and 406 performance canister filters, Bio-Foam Max is a 2-in-1 biological and mechanical media that features a rippled surface pattern offering up to 30% more area for effective filtering of waste and debris.. Compatibility. 406 Canister Filter. 407 Canister Filter. Features. Premium Biological and Mechanical filtration. Rippled surface pattern offers 30% more area to efficiently trap waste and debris. Prevents premature clogging extending life of subsequent filter media. Complex foam construction helps maintain even and consistent water flow. Ideal surface for growth of beneficial, nitrifying bacteria. Custom fit with no gaps to maximize filtration efficiency. Convenient 2-pack format. Replace every 6 months. For use in freshwater and saltwater aquariums