CAVAGNA Automatic gas changeover regulator for use in caravans and motorhomes. When gas levels run low, the sensing device automatically changes to the reserve cylinder without interrupting the gas flow. The non-return valve allows disconnection of the empty cylinder without disrupting the supply.Features. Pressure: 30mbar (max. 35mbar; min 30mbar). Output: 1.5kg/h. Inlet connection: 20x1.5M (G13 of Standard EN 12864). Outlet connection: compression fitting 10mm diameter. Available seperately: R7HPRO Propane Hose Assemblies 750mm or R7HBUT Butane Hose Assemblies