The unit features an m20 inlet and 8mm compression outlet, with a capacity of 1.5kg of gas per hour. a maximum inlet pressure of 20 bar and operating pressure of 30 mbar makes it suitable for most requirements in a caravan or motorhome. Side inlet for use within confined gas storage compartments Built-in over-pressure protection Two stage, low pressure lpg regulator suitable for use with either propane or butane gas Designed for installation in caravans & motorhomes as a bulkhead mounting in vented cylinder compartments Switching between different gas cylinders can be done by changing the pigtail or adding a cylinder adaptor Inlet: w20. outlet: 8mm compression Max inlet pressure: 20 bar comes with 8mm outlet nozzle