Designed specifically for the Fluval 406/407 performance canister filters, Bio-Foam captures large particles and debris for effective mechanical filtration.

• 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

For filter models: 404, 405, 406

For freshwater and marine environments