it must be sourced separately or reused if in good condition

This kit is specifically designed for Schneider Electric and Barber Colman 2x2 inch pneumatic thermostats

and HUMBBSBP series whole-house humidifiers

Key Benefits: Dual-Function Monitoring: Provides integrated pressure and temperature readings to simplify boiler diagnostics and routine maintenance

ensuring a leak-free seal and positive shut-off

Enviro-tec PC-03-0001 Pressure Switch Els PW 17895 it must be sourced separatelyThe Enviro tec PC 03 0001 is a normally open (N O) fixed air pressure switch engineered for precision monitoring within VAV terminals, fan coils, and commercial air handling systems. This genuine OEM replacement is calibrated at a 0. 05" WC (water column) set point, ensuring the circuit closes only when sufficient static pressure is detected to safely initiate HVAC system sequences. Built with a robust housing to withstand typical mechanical room