Replacement Robertshaw Combination American 1/2 Psi Gas Control Valve This model is a regulated gas valve, connected with thermopile, pilot and thermostat to functionas an automated heating gadget without exterior electricity can be fastened in vertical-upright 12 o&;clock or horizontal three and nine o&;clock. Product Name:Gas security valveSize:Standard SizeMedia:GasUsage:Commercial KitchenType:Thermostatic Air-Vent Vacuum Breaker, ControlStructure:ControlFeatures:Eco-friendlyPower:Electric