Klober's Small Slate Vent is a low profile design that perfectly blends with the roof line.This vent has an integral downpipe to be used for soil ventilation or mechanical extraction.No adaptor requiredSuitable for 600mm x 300mm (24" x 12") 500mm x 250mm (20" x 10") Man-made or natural slate Double lap slates For roofs with pitches of 20º 70º New build or re-roofing application High or low level ventilation Dimension 600mm long x 300mm wide x 75mm deep (including downpipe)Material:Rigid PVCPlease note: image is for illustration purposes only