Years of research has led to this advanced pond filtration system form Hozelock. The new Bioforce Revolution is the easiest pond filter to clean as it's central core of filter sponges break up during cleaning then reform during use to provide a reliable mechanical barrier to debris.The trick is that the filter sponges are not complete blocks but are made up of hundreds of small filter cubes when the cleaning handle is turned to clean the sponges thes move around the chamber and the dirt they have picked well as this unoup is dislodged.Alongside this cleaning action is a powerful 24w UV unit to zap green algae and K3 Kaldness medi to provide bio cleaning.
