Tetra Whisper 10-30 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 decor. The air pump (included) provides bubbles that move water through the filter, efficiently filtering and oxygenating your aquarium. The water flows through Ultra-Activated carbon, absorbing odors and discoloration, as well as through the dual-sided mesh of the Bio-Bag Filter, trapping debris and fish waste. The Tetra Whisper 10-30 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 Tetra Whisper Bio-Bag Filter cartridge.

• UNIVERSAL DESIGN: Tetra Whisper 10-30 Internal Filter is an all-in-one air pump and water filter system. USE IN: Aquariums 10-30 gallons in size.
• INTERNAL FILTER: Mounts on the inside of your aquarium with clip (included).
• CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.
• AERATES WATER: Air-driven design filters water while oxygenating water.
• CONVENIENT DESIGN: Uses easy to change Bio-Bag cartridges; filter mounts inside aquarium, making it possible to place tank flush against the wall.