The exo terra repti clear compact filter is an energy-efficient compact terrarium filter and is also perfect for providing water circulation in terrariums and aqua-terrariums. The filter is fully submersible and can be installed either vertically or horizontally depending upon the preferred usage application. Due to its small size the filter is easy to hide in natural aquatic terrarium set-ups. The maximum flow rate of the repti clear 150 is 40 gallons per hour and is an adjustable flow rate. The presence of clean and fresh water is important for the proper care and maintenance of captive reptiles and amphibians. exo terra offers a compLete line of products to ensure that a quality water source is always easy accessible for the terrarium inhabitants and that the water is kept clean and free of debris.