Tetra Whisper In-Tank Filter 40i - 20-40 gallon (25818), Black

The Tetra Whisper 40i Internal Filter for aquariums is the ultimate in quiet, convenient 3-stage filtration. This submersible filter mounts on the inside of the aquarium, rather than hanging from the outside, making it possible to place the tank flush against a wall and easily hide with tank décor. The air pump (included) provides bubbles that move water through the filter, efficiently filtering and oxygenating your aquarium.

With the ability to filter up to 170 gallons per hour, the Tetra Whisper 40i Internal Filter adjusts easily to high or low water levels with a mounting clip. Each unit includes the filter, air pump, 2 feet of airline tubing and one large Tetra Whisper Bio-Bag Filter cartridge (change monthly – replacement small filter cartridges available). It is designed for 20-40 gallon tanks.

Tetra, a leader in fishkeeping products, has been developing comprehensive fish food knowledge since 1951. Whether you are a beginner or an experienced hobbyist, Tetra offers a wide variety of quality fish food and innovative equipment to enhance the beauty and ease of fishkeeping in your home.

The Tetra Whisper 40i Internal Filter is an all-in-one air pump and water filter system with an internal design that mounts on the inside of the aquarium with a clip included. The dense, dual-sided mesh filters debris and fish waste, while the air-driven design filters up to 170 GPH and oxygenates the water. The convenient design uses large, easy-to-change Bio-Bag cartridges and allows the filter to mount inside the aquarium, making it possible to place the tank flush against the wall.

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