This Speedy Rain Water Diverter Collector with Filter is called Speedy, as it can be installed in just five minutes. Graf’s water harvesting system will work by following three simple steps – drill, plug, done – & the distance between the downpipe & wall is irrelevant. No removal of the downpipe for the max. 50 m² installation Distance between downpipe & wall is irrelevant Including filter & overflow function Summer/winter operation Downpipe sizes 70-100 mm Including core drill & connection seal Max. roof area 80 m² Hose Diameter 32mm Hose Length 400mm