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2 CYLINDER AUTOMATIC CHANGEOVER KIT C/W OPSO Capacity: 4.2kg/hr Max Inlet Pressure: 20bar Outlet Pressure: 37mbar OPSO: 100-110mbar Kit includes: • Automatic changeover regulator (c/w OPSO), bracket & screws • 2 x 20” excess flow & non-return POL x W20 pigtails • 1/2” M/F ball valve • Emergency instruction plaque