Features
FOR 1-4 GALLON AQUARIUMS: Tetra Whisper 4i Internal Power Filter uses Small Whisper BioBag filter cartridges that are easy to change.
27 GPH MOTOR: The internal 27 GPH pump cycles a 4 gallon aquarium more than 6 times per hour.
POWERFUL FILTRATION: Water flows through the cartridge floss, trapping debris and fish waste, while Ultra-activated carbon helps remove odor and discoloration.
SPACE-SAVING DESIGN: Your aquarium can be 1” from the wall with the internal filter designed to clip on your tank wall and be hidden by décor.
ADJUSTABLE: Adjustable clip and suction cup allows for a variety of setups to easily adjust to high or low water levels.
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