Pneumatic Thermostat, Direct Acting, Heating and Cooling, Dual Temperature, Control Air Pressure 0 to 25 psi, Air Connections 1/4 in Barb, Element Type Bulb, Capillary Length 42 in, Max. Air Pressure 25 psi, Max. Ambient Temp. 150 Degrees F, Height 5 in, Width 5 in, Depth 5 in, Temp. Control Range 60 Degrees to 150 Degrees F, Air Consumption 1.5 scim, Includes Mounting Bracket