Marineland Penguin PRO Power Filter

Marineland Penguin PRO Power Filter delivers easy, three-stage mechanical, chemical and biological aquarium filtration. This ultra-quiet filter has a decoupled motor to reduce noise so you can relax and enjoy your aquarium. This power filter contains BIO-Wheel technology to provide wet/dry biological filtration for nitrifying bacteria growth and eliminating toxic ammonia and nitrate fast. Uses Marineland Rite-Size B Filter Cartridge. Filters your 20-gallon aquarium six times per hour with flow control up to 125 GPH. 

Available in five sizes: 125 (for up to 20 gallons), 175 (for up to 30 gallons), 275 (for up to 50 gallons), 375 (for up to 75 gallons), 450 (for up to 90 gallons).