Green Pond with 8 watt UV lamp. Combines UV clarification and biological filtration to guarantee crystal-clear water. Maximum pond sizes: 2500 litres and 10000 litres. Max flow 5000 litres per hour. Water returns to pond under gravity. Drain system for easy sludge removal. Contains Supra bio media. Removable Tray. Hinged lid for easy maintenance. Inlet size 19, 25 and 32mm. Outlet size 38mm x1 or 2. 5m power cable. Size (H)34, (W)26, (L)48cm. Weight 3.68kg. Manufacturers 3 year guarantee.