This setpoint knob kit is specifically engineered to provide a precision fit for Barber Colman TK Series thermostats

The Honeywell E3SA Gas Detector is a high-performance

Proper mechanical integration ensures the sensor maintains the specific ohm readings required for the control module to function without nuisance tripping

this 120V AC solenoid valve provides a quick exhaust feature that significantly reduces cylinder return times in pneumatic systems

it ensures seamless mechanical compatibility for contractors performing field service

Siemens Building Technology 331-2968 Actuator R-134A This setpoint knob kit isAs a veteran HVACR technician, you know the reliability of the Siemens 331 2968 No. 4 pneumatic actuator. This pneumatic damper actuator is built with a rugged, all metal body designed for the positive or gradual actuation of HVAC dampers in mixing boxes, terminal units, and unit ventilators. Featuring a 4 inch stroke and an effective diaphragm area of 17. 9 sq. in., this unit provides the necessary thrust for precise air volume control. The 8 13 psi