FluvalAmmonia Remover pads are designed specifically for the high performance canister filter series, Ammonia Remover pads offer both effective mechanical and chemical media in a convenient, space-saving format.
306/307 & 406/407:
Specifially desgined for Fluval 306/307 & 406/407 filters
Effective at reducing and controlling toxic ammonia spikes
Effectively traps floating particles for clear water (debris, excess food and waste)