Pls note following For 50L X200Bar Cylinder : 50Liter . Working Pressure 200bar can storage 10m3 Gas , and this size is world universal ; Outside diameter: 232mm Water Capacity: 50L Height: 1450mm Weight: 60kg Working pressure: 200Bar Testing pressure: 300Bar Wall thichness: 6.0mm Stroge gas : 10 m3 Material: 34CrMo4 Cylinder stansard: ISO 9809-1 with TUV certification . Show More