Tetra Whisper 4 Gallon Internal Power Filter, Filtration for 4 Gallon Aquariums

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, rather than hanging from the outside, 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. UNIVERSAL DESIGN: Tetra Whisper 1-4 Internal Filter is a dual stage water filter system. INTERNAL FILTER: Mounts on the inside of your aquarium. CATCHES DEBRIS: Dense mesh filters debris and fish waste. CONVENIENT DESIGN: Uses easy to change Whisper Filter Cartridges; filter mounts inside aquarium, making it possible to place tank flush against the wall. USE IN: Aquariums 1-4 gallons in size.

FOR 4 GALLON aquariums: This Whisper Internal Power Filter uses small filter cartridges and adjusts easily to high or low water levels.
27 GPH PUMP: The internal 27 GPH pump cycles a 4 gallon aquarium more than 6 times per hour.
TWO FILTERS IN ONE: Cartridge floss catches debris and fish waste, while Ultra-Activated carbon removes odors and discoloration.
SPACE-SAVING DESIGN: Your aquarium can be flush to the wall with the internal filter designed to clip on your tank wall and be hidden by décor.
EVERYTHING YOU NEED IS INCLUDED: This pack contains the hinged lid, tank clip, internal filter and filter cartridge.