PVC pipe and fittings to suit any ducted vacuum systems. All ducted vacuum systems in Australia use the same size pipe and fittings, regardless of their brand. Ducted vacuum pipes are 50mm O.D. (Outside Diameter). Unlike 50mm plumbing pipes which have 50mm I.D.(Inside Diameter), ducted vacuum pipes and fittings are usually not available from your local hardware shops. We carry all kind of fittings needed to do complete ducted vacuum installations. We also have DIY kits ready for 1, 2, 3 or 4 points installations to make your online shopping it easier. Should you need further assistance, please ring our friendly staff on (03) 9890 1097.