Marineland Penguin 100 Bio-Wheel Power Filter, Up to 20-Gallon, 100 GPH
Convenient Marineland® Rite-Size™ Filter Cartridges come ready to use with each filter...ready to mechanically and chemically remove waste, discoloration and odors. Each contains new faster-acting Black Diamond® Premium Activated Carbon for maximum efficiency. Biological filtration is provided by the revolutionary and patented BIO-Wheel - proven best at removing toxic ammonia and nitrite.
All BIO-Wheel filters feature noise-reducing two-piece vented covers, and adjustable mid-level intake strainers.