TP973A2084 : Honeywell Pneumatic Thermostat, Heat Only, 1 or 2 Pipe, 15-30°C

Honeywell TP973A2084 Direct Acting, 0.011 scfm (5.2 mL/s), 15 C to 30 C, One or Two Pipe, Pneumatic Thermostat. This Single temperature, low capacity, pneumatic thermostat provides control of pneumatic valves & damper actuators in HVAC systems. Replacement kits are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell pneumatic thermostats. For one pipe, order an external 0.005 in. restriction.

Features:
Durable TP970 Series Thermostat.
Backplate has molded air connections-no separate fittings needed.
Universal locking cover with satin chrome finish and horizontal, vertical, or blank window options available. Sold Separately
Low capacity thermostat.
Built in restriction for two-pipe applications.