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