Standard Shank Well Included: Comes with a 1/2" NPT well to protect the sensing bulb and ensure accurate heat transfer

The Cleveland Controls DDP-106-177 is a heavy-duty dual air pressure sensing switch designed for critical HVAC and energy management proving circuits

Key Benefits Factory-Balanced Construction: Precision balancing reduces mechanical stress on the blower motor and minimizes system noise

ensuring that HVAC contractors can restore factory-standard performance and maximize flow regulation equipment efficiency in mission-critical facilities

this redundant solenoid valve operates on a 24V gas valve control circuit

McDonnell & Miller 63-B Low Water Cut Off 323080-701 Standard Shank Well Included: ComesThe McDonnell & Miller 63 B (Part Number 142700) is a heavy duty, float operated mechanical low water cut off engineered for reliable performance in residential and commercial hot water and steam boilers. As a veteran grade boiler safety control, this unit features an automatic reset and a 1" NPT threaded connection, rated for a maximum pressure of 50 PSI. The integrated float block design ensures stable operation by reducing float movement caused by