Aqueon QuietFlow 20 LED PRO Aquarium Fish Tank Power Filter For Up To 30 Gallon Aquariums

Product Description Aqueon QuietFlow Power Filters and cartridges were designed with the fish and the aquarist in mind. Our patented designs include unique features to enhance water quality and clarity, increase oxygen levels and lessen noise. Aqueon QuietFlow Power Filters feature four stages of filtration-mechanical, chemical, biological and wet/dry-for the cleanest, clearest, healthiest water. Higher flow rates ensure higher dissolved oxygen content for healthier, more active fish. The internal pump design helps dampen noise, eliminates leaks and starts up automatically after cleaning or power interruptions. Amazon.com Aqueon QuietFlow Power Filters feature four stages of filtration – mechanical, chemical, biological and wet/dry – for the cleanest, clearest, healthiest water. Higher flow rates ensure higher dissolved oxygen content for healthier, more active fish. The internal pump design helps dampen noise, eliminates leaks and starts up automatically after cleaning or power interruptions.HighlightsAuto-start, self-priming filterLifetime WarrantyNo wheel to stop turningBio-Pin Wet Dry Technology Product FeaturesHigher Flow RatesAqueon filters have higher flow rates than the competition to ensure proper turnover for cleaner water and higher dissolved oxygen content, making fish healthier and more active.Superior Biological FiltrationThe patented biological grid has a large surface area to support more of the beneficial bacteria that eliminates ammonia and nitrates. A second wet/dry grid provides further biological filtration and oxygenation as the water returns to the aquarium. Internal Pump DesignSince the filter pump is submersed in the aquarium, there is no need for priming at setup or when restarting the filter after cleaning or power interruptions. An internal pump also allows for virtually silent operation, continuous flow raters, less chance for leaks, and a much thinner profile.Four Stage Advanced Filtration SystemStage 1: Dense floss removes particles and debris.Stage 2: Activated carbon removes toxins, odors and discoloration.Stage 3: Patented Bio-Holster removes toxic ammonia and nitrites.Stage 4: Diffuser grid removes additional toxins while adding oxygen for more active fish. It also reduces splashing makes the return exceptionally quiet. QuietFlow Comparison Chart Gallons per Hour Size Replacement Cartridge Size QuietFlow 10 100 6.4"x3.8"x6.3" Medium QuietFlow 20 125 7.4"x4.4"x7.9" Large QuietFlow 30 200 8.4"x4.6"x7.9" Large QuietFlow 50 250 8.4"x4.1"x7.9" Large QuietFlow 55/75 400 12.9"x6.6"x8.4" Large (2)