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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
ÇÖs ASSE 1001 compliance and technical integrity in the field
preventing premature wear in high-cycle fluid control applications
For building automation contractors requiring precise terminal control
This OEM Honeywell part functions by providing the necessary compression and alignment for the packing cartridges
Always verify the model number on your furnace's rating plate
Johnson Controls T-4000-2139 Cover ÇÖs ASSE 1001 compliance andThe 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