The Burtons BD 300 Combi MK3 Drum Filter is a powerful self cleaning drum and biological filtration system designed for koi ponds up to 35,000 litres. This latest MK3 version features an upgraded 150 litre bio chamber, Bluetooth monitoring and flexible flow outlets. We also supply the filter with 150 litres of biological media included free, unlike many retailers who sell the filter without media.
