The Fluval A220 Foam Pad is the correct replacement for the following aquarium system:
The Fluval Foam Block for Fluval 104 / Fluval 105 is designed for use with the Fluval 105 Aquarium Canister Filter System (A201). The Fluval foam pad filter is used as the Stage 1 filter media in the Fluval 105 Canister Aquarium Filter System. Fluval foam pad replacements for the Fluval 105 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, and are especially suited for heavily populated aquariums.
Fluval Foam Pad Block Filter specifications:
Fluval 105 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. The Fluval foam pad replacement filter is also known by Hagen part number A220. Additionally, this filter will also fit the Fluval 104 aquarium filter system.