Tetra Whisper Power Filter (PF-20 [10-20 Gallon Aquariums])

Tetra Whisper Power Filters are the best-selling brand of power filters in the U.S. Appropriate for every size aquarium, they provide the three types of filtration that your aquarium needs:

• Mechanical Filtration – Removes uneaten food, bits of plants and fish waste
• Biological Filtration – Provides for growth of a colony of beneficial bacteria that will eliminate harmful toxins in the water
• Chemical Filtration – Activated carbon removes compounds that cause odors and discoloration of the water|

The Tetra Whisper Power Filter contains a hinged lid for improved ergonomics / ease of use, an improved compact aesthetic design, time strip indicators, a convenient top-mounted flow control dial and packaging upgrade. Hang on back HOB power filter for easy installation.

Designed for ease of use, Whisper Power Filters use Bio-Bag filter cartridges for mechanical and chemical filtration. The disposable Bio-Bags remove waste particles, discoloration and odors from aquarium water. Bio-Bags are easy to change, making it easy to maintain clear aquarium water.

Specifications:
Whisper 20: 105 GPH – (7.25″L x 3.5″W x 7″H) – Use Large Bio-Bags
Whisper 30: 145 GPH – (8″L x 4.5″W x 7.25″H) – Use Large Bio-Bags
Whisper 40: 210 GPH – (8″L x 4.5″W x 7.5″H) – Use Large Bio-Bags
Whisper 60: 330 GPH – (13.5″L x 4.5″W x 7.5″H) – Use (2) Large Bio-Bags