A great UV pond filter for fish ponds up to 15,000 litres.
A traditional filter 'box' which includes additional features such as a flow regulator (or tap) on the inlet so water flow into the filter can be adjusted up or down. Better still, the water enters the filter via a spray bar ensuring effective distribution of water through the filter.
Note: Colour of box filter changing from green to black over the course of 2019.
NOTE: UVC bulb included.