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Johnson Controls T-4002-5012 is an adjusting knob kit designed for external set point adjustments. This product is suitable for use with T-4000 series thermostats. This package includes ten adjusting knobs to provide easy and effective temperature control in HVAC systems.
Adjustment knobs are essential for setting and maintaining desired temperature levels in HVAC equipment.
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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