Featuring a standard 7/8 inch bore

Technicians should note that this standard model provides optimal clearance in most boiler shells

This technician-specified setting means the internal contacts complete the circuit when the sensed pressure drops to the calibrated set point (fall)

Featuring a 3-inch insertion length (stilt type) and a distinct red sleeve for rapid identification during field service

common issues include blocked flue vents

Johnson Controls T-4002-2132 Pneumatic Cover Els PW 17895 Featuring a standard 7/8 inchJohnson Controls T 4002 2132 Pneumatic Cover with Faceplate, Brass, Includes Thermometer and 1 Setpoint Window, Vertical