The Hagen A1410 is designed to fit the following aquarium filter:
The AquaClear 20 - A1410 Ammonia Remover 3-Pack is ideal for new or heavily populated freshwater aquariums. This AquaClear ammonia filter removes and controls harmful ammonia and nitrite. This ammonia insert also reduces stress on fish. This aquarium ammonia filter comes in a convenient 3-pack.
The Hagen A1410 specifications: