The Aqua air offers a range of great features including quiet reliability, compact design, powerful output and unique carbon air filters. It also use"s neoprene diaphragms for improved durability. Ideal for filters ornaments and airwalls. For aquariums up to 60cm (24 long) OR 1 x 12 Airwall. Air flow of 120 litres/ hour and pressure (mbar) of 0.20.