The Exo Terra Repti Clear Foam Filter Media Insert is the replacement media for the Exo Terra Repti Clear Compact Filter. 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. 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.