The Zoo Med Turtleclean Deluxe Turtle Filter - 20 is a durable filtration system designed specifically for turtle tanks. As turtles are one of the messier animals in the pet trade and their water requires significant filtration to maintain a clean, healthy and habitable environment for them. Fully submersible and quite versatile, the Zoo Med Turtleclean Deluxe Turtle Filter - 20 can be mounted either vertically or horizontally depending on your needs and the water level. Using a small door, the unit can open up to reveal filter media cartridges which allow aquarists to quickly and easily remove cartridges without having to remove the entire filter from the enclosure. Suitable for tanks with up to 20 gallons of water. Low wattage and highly efficient.