Tetra Whisper Internal Power Filter

In-tank filter that clips inside the aquarium and takes Whisper Bio-Bag cartridges, with an adjustable clip for high or low water. The 4i suits 1 to 4 gallons, the 10i 5 to 10, the 20i 10 to 30 and the 40i 20 to 40.

Filtration

Internal