A perfect pond solution for ponds sized up to 10,000 litres 2,200 gallons. The filter supplied boasts a built in 9w uvc and by simply twisting a knob on it automatically cleans itself! In the 'run' position the water undergoes a 4 stage purification process. Simply turn the knob to clean and the foams are squeezed by up to 1,000lb of water pressure forcing out pond sludge. The back flushed dirty water is then pushed out through the second waste outlet typically down the drain or flowerbeds. Note, figures based on pond in full shade with water plants 5,000 litres for ponds in full sun. Br br this set contains the following components please click links below for more information br • fish mate 5000 pond pump br • fish mate 10000 pressure filter br br saving made when compared to buying items separately.