The Tetra Whisper 1-4 Internal Filter for aquariums is a quiet, dual-stage filtration system. This submersible filter mounts on the inside of the aquarium, making it possible to place the tank flush against a wall and easily hide with tank decor. The water flows through Ultra-Activated carbon, absorbing odors and discoloration, as well as through the cartridge floss, trapping debris and fish waste.

The Tetra Whisper 1-4 Internal Filter is a dual-stage water filter system that mounts on the inside of your aquarium. Its dense mesh filters debris and fish waste, and it uses easy-to-change Whisper Filter Cartridges, allowing you to place the tank flush against the wall.

Designed for aquariums 1-4 gallons in size, this Whisper Internal Power Filter uses small filter cartridges and adjusts easily to high or low water levels. Its internal 27 GPH pump cycles a 4-gallon aquarium more than 6 times per hour, providing efficient filtration.

The Tetra Whisper 1-4 Internal Filter incorporates two filters in one. The cartridge floss catches debris and fish waste, while the Ultra-Activated carbon removes odors and discoloration. This space-saving design allows your aquarium to be flush against the wall, with the internal filter clipping onto the tank wall and being hidden by décor.

Everything you need for installation is included in the pack, such as the hinged lid, tank clip, internal filter, and filter cartridge. This convenient and efficient filtration system ensures your aquarium stays clean and healthy, while maintaining a sleek and unobtrusive appearance in your living space.

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