The Zilla Aquatic Reptile Internal Filter — Size 20 is an internal filter designed for heavy use in a terrariums housing turtles, frogs or other amphibious or aquatic creatures. By and large, turtles produce an exceptional amount of waste and a filter needs to be strong enough to clean the water to a consistently healthy level. This filter contains a carbon filter that works hard to remove waste, uneaten foods and odor, so that both you and your reptilian roommate can enjoy a clean, healthy habitat. Featuring suction cups and hanging clips, the installation is simple and will take no time at all. To ensure the safety of your animal, protective grates have been installed on the filter so that there is no risk of the animal entering the filter housing and injuring itself. The output of the filter is 60 GPH.