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

Designed specifically for the Fluval 406/407 performance canister filters, Bio-Foam captures large particles and debris for effective mechanical filtration.. Compatibility. 406 Canister Filter. 407 Canister Filter. Features. Mechanical filter media. Custom fit to prevent debris bypass. Ideal pore size allows efficient water flow and longer media lifespan. Enhances the biological filtration process. Convenient 2-pack format. 2 x foam filter blocks included