Triple 4" inlets / twin 2" outlets but can be modified for individual needs
1.5" Ball valve drain
Dimensions - 740mm wide x 1140mm long x 840mm depth.
Holds 300 litres of typical bio media and half a tonne of water
Double central air line.
One unit capable of filtering ponds of approx. 10,000 UK gallons.
350 litres of media
Three Inlet, 110mm / Twin outlet, 63mm

As the water is pushed sideways at the surface of the unit, it has no choice but to travel downwards when it hits the side. The bottom of the chamber is curved, helping that downward flow turn into a circulatory movement. When reaching the airbar right at the bottom of the unit, the water is forced back up to repeat the circulation until it exists out of the far end. This curved bottom also eliminates any corners where debris may accumulate.

Large Draco bio Chamber