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 9000 pond filter and Aquaforce 6000 pond pump. Suitable for ponds up to 18000 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. Biological Filtration - Large surface area Kaldnes K3 biological media, accommodates beneficial bacteria in a bug bungalow to maintain healthy water. No fuss cleaning system - No more dirty hands simply turn the handle to activate the internal cleaning blades that separate solids from the Cypricube foams.