The Fluval A1422 can be used in the following aquariums:
The Fluval A1422 Foam Pad for Fluval Chi System 2-pack is a two pack of foam pads for 5 and 6.6 gallon Fluval Chi Aquariums. This Fluval Chi replacement traps particles and debris to provide a healthy environment for your aquarium. This replacement aquarium filter also promotes the growth of healthy bacteria.
Fluval A1422 Foam Pad for Fluval Chi System 2-pack specifications: