The new Bioforce Revolution 14000 Filter from Hozelock is an advanced pressurised filter system with integral 36w UV clarifier. The Hozelock Bioforce 14000 features a patented, easy clean system and is combined with a 3 step filter process to provide clear and healthy water for ponds up to 14000 Litres with fish. 1) High power UV Clarifier - eliminates green water2) Mechanical Filtration - CypriCube foams with +50% surface area ensure clear water3) Biological Filtration - Kaldnes K3 biological media maintains healthy water No more dirty hands simply turn the handle to activate the internal cleaning blades that separate solids from the CypriCube foams. Good bacteria is preserved as filters are cleaned using pond water, then simply turn the switch to flush the waste material outside the pond. Bioforce Revolution provides pressurised filtration without clogging or flow loss thanks to the unique CypriCube foam filters that effectively remove waste but do not clog like traditional foam filters. The inclusion of the renowned Kaldness biomedia ensures healthy water. The unit can be hidden at the side of a pond or buried in the ground up to the level of the hose inlet/outlet. The pressurised filter allows the water to be pumped to a higher exit point to create relaxing waterfalls. The Bioforce Revolution 14000 Pond Filter comes complete with a 2 year manufacturers warranty.