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The Johnson T-4000-2139 is a beige plastic cover designed for horizontal mounting. This cover serves as a protective casing for T-4000 series thermostats. It does not include a thermometer or setpoint window. The simple design ensures compatibility and ease of installation for HVAC applications.
This thermostat cover is ideal for HVAC technicians who need a reliable and straightforward solution for protecting thermostat components.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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