Johnson Controls T-4000-2139 Cover For building automation contractors requiring

For building automation contractors requiring precise terminal control

This OEM Honeywell part functions by providing the necessary compression and alignment for the packing cartridges

Designed as a direct replacement component for the A-4400 series refrigerated air dryer

preventing premature wear in high-cycle fluid control applications

ÇÖs ASSE 1001 compliance and technical integrity in the field

Johnson Controls T-4000-2139 Cover For building automation contractors requiringThe Johnson Controls T 4000 2139 is a professional grade horizontal thermostat cover designed specifically for the T 4000 Series pneumatic room thermostats. Engineered for sleek, unobtrusive installation, this beige plastic cover features a clean aluminum faceplate without a thermometer window or setpoint adjustment openings. This configuration is ideal for facilities where unauthorized tampering must be minimized while maintaining a uniform aesthetic