About This

• Quiet and efficient Cascade 600 filter cycles water at 175 gallons per hour for tanks up to 50 gallons; adjustable flow switch and directional nozzles.
• Includes 1 refillable carbon cartridge and 1 bio-sponge for physical, biological and chemical filtration to remove toxins.
• Features venturi aeration to oxygenate water without needing air pump; spray bar distributes water evenly over aquarium surface.
• Replacement cartridges provide additional chemical filtration to absorb ammonia, nitrites and remove odors.
• Cartridges measure 4 inches diameter by 3 inches height; replace every 4-6 weeks for optimal results.