The Fluval 14006 is the correct replacement foam pad for the following filter systems:
The Fluval Foam Pad for Fluval C3 Aquarium Filter 2 pk is used as the Stage 1 mechanical filter media in the Fluval C3 Aquarium Power Filter System.
These Fluval foam pad replacements for the Fluval C3 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 C3 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 two pack of Fluval foam pad replacement filters are also known by Hagen part number 14006.