Fluval Bio-Foam Plus 306/307-406/407.  Designed specifically for Fluval 306/406, 406/407 canister filters, Bio-Foam+ performs double duty as both an effective mechanical and biological media.

Features:

• Mechanical/Biological filter media
• Dense structure ideal for trapping small particles
• Intricate, porous network provides vast surface area to facilitate growth of beneficial bacteria
• Helps create clean and healthy water conditions for fish and plants
• Convenient 2-pack format

Box contains 2 foam pads