Honeywell C6097A3012 1-20 Inch Break
The Honeywell C6097A3012 pressure switch is a safety device designed to protect HVAC equipment, like furnaces and air conditioners, from damage caused by a loss of airflow. It's essentially a 1-20 inch pressure switch with a 1/4 inch National Pipe Thread (NPT) connection. Installed directly into the ductwork, it uses a flapper mechanism to monitor airflow.