Pneumatic Zero Energy Band Room Thermostat, Normally Open Heat, Direct Acting, 55-85 Degree Dial Range, Proportional 2 Pipe, Adjustable 2-10 Degree Throttling Range, Zero Energy Band Pressure: Adjustable 5-10 Psig ( Factory Set at 8 Psig ), 5/32" Air Connections

Pneumatic Zero Energy Band Room Thermostat, Normally Closed Heat, Reverse Acting, 55-85 Degree Dial Range, Proportional 2 Pipe, Adjustable 2-10 Degree Throttling Range, Zero Energy Band Pressure: Adjustable 5-10 Psig ( Factory Set at 8 Psig ), 5/32" Air Connections

Pneumatic Bulb Thermostat, Direct Acting ( Field Changeable ), 140 Degree Safe Bulb Temperature, 7/32"x14" Bulb, Dial Marked: Cooler-Warmer, 60-90 Degree, Adjustable 2-10 Degree Throttling Range, 15 Psig Supply Air Pressure