Siemens 356-0750 Pneumatic Thermostat, Rigid Bulb, Limitem, 18″, DA, 30-180F

Siemens 356-0750, Thermostat, Pneumatic, Rigid Bulb, Limitem, DA, 18″ Sensing Tube, Fahrenheit.

Limitem Rigid Bulb, Direct Acting, Pneumatically-operated Limitem Thermostat. It has a 30 to 180 degree Fahrenheit operating range, and an 18″ sensing tube. Duct-mounting hardware is included.