Tidal Power Filters are designed from the ground up to provide your aquarium with high quality, comprehensive filtration.They are easy to use and adaptable to a variety of aquarium conditions. With a host of features including a self-priming pump, dual water intake with surface skimmer, adjustable flow, maintenance monitor, self-cleaning impeller, and a filter basket that holds any kind of filtration media - and more of it - Tidal Power Filters are designed to deliver the highest water quality possible with maximum versatility and ease of use. They are suited to a wide variety of aquarium setups from saltwater to freshwater, ranging in size from 55 gallons to 110 gallons. All Tidal Filters have a 3 year warranty that can be extended to 5 years by registering your filter.