Fluval Bio-foam For 306 406 - 307 407 Canister Filter

2-Pack Designed specifically for fluval 306 406, 406 407 canister filters, bio-foam performs double duty as both an effective mechanical and biological media.. Compatibility. 306 406 Canister filter. 307 407 Canister filter. 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

2-Pack Designed specifically for fluval 306 406, 406 407 canister filters, bio-foam performs double duty as both an effective mechanical and biological media.. Compatibility. 306