The Biotec 60000 is a perfect filtration choice for those pondkeepers with a large fish pond. This filter can handle 60,000 litres of water 40,000 if keeping fish and 15,000 if koi are kept.
Simply place the unit in your pond and it will float and gently heat the water. If frost occurs it will ensure that a patch is kept ice free so vital oxygen can still enter your pond and toxic gases escape.