This is a pressurised pond filter with integrated UVC. It is small and can be hidden in the ground. It is very easy to install, simple to maintain. Being pressurised by the pond pump, water can be pumped up from the Bioforce to the top of a waterfall. This makes it even easier to hide. The correctly sized filtration package will give our unique clearwater guarantee. For treating ponds of up to 3000 litres capacity.