This is an AquaClear 50 Filter Foam Insert Pad (A613) for the AquaClear 50 Aquarium Filter System (A610). This AquaClear foam filter pad is used as the Stage 1 mechanical filter media in the AquaClear 50 Power Filter System. It also works to enhance the effectiveness of the AquaClear BioMax Stage 3 biological filter.
The AquaClear foam filter pad replacement for the AquaClear 50 Aquarium Filter is made with porous foam to trap large particles, debris, and impurities such as dirt, sediment, sand, limescale, rust, and more. AquaClear foam filters reduce the amount of particulate matter in your aquarium to help your aquatic pets thrive better.
AquaClear 50 foam pad filter replacements should be changed approximately every 2-3 months, though they can be rinsed clean between filter changes to extend filter life. This AquaClear foam pad replacement filter is also known by Hagen part number A-613.