Combining the convenience of a Bioforce pressurised filter with a powerful and efficient, solids handling Aquaforce Pump creates a complete filtration system backed by the Hozelock Cyprio Clearwater guarantee. Product includes Bioforce Revolution 6000 pond filter and Aquaforce 4000 pond pump. Suitable for ponds up to 12000 litres - The Bioforce Revolution features a patented, easy clean system and is combined with a 3 step filter process to offer Clear and Healthy Water Guaranteed. High power UV Clarifier eliminates green water. Mechanical Filtration