300l/h Aquarium Internal Filter for Fish Tank Submersible with Spray Bar You are purchasing a high quality 300l/h Aquarium Internal Filter suitable for use in aquariums up to 60 litres in size. Our internal filters come complete with a spray bar attachment, along with a venturi, to facilitate additional aeration within the aquarium. Complete with foam sponge for Mechanical and Biological filter media. There is a flow limiter on the front of the filter to allow the flow rate to be slowed if required depending on application. Size: 135 x 40 x 30mm