This is a 2 pack of Fluval Foam Block Pad Filters (A226) for the Fluval 405 Aquarium Canister Filter System (A216). These Fluval foam pad filters are used as the Stage 1 filter media in the Fluval 405 Canister Aquarium Filter System.
These Fluval foam pad replacements for the Fluval 405 Aquarium Filter are made with porous foam to trap large particles, debris, and impurities such as dirt, sediment, sand, rust, hair, and more. Fluval foam filters reduce the amount of particulate matter in your aquarium to help your aquatic pets thrive better. They are especially suited for heavily populated aquariums.
Fluval 405 foam block filter replacements should be changed approximately every 2-3 months, though they can be rinsed clean between filter changes to extend filter life.
This two pack of Fluval foam pad replacement filters are known by Hagen part number A226. They are also compatible for use in the Fluval 404 aquarium filter system.