Johnson Controls T-4000-3139 Plastic Cover The interchangeable hub design allows

The interchangeable hub design allows for maximum field flexibility

Used with MP918A

acting as the primary sensor for detecting the presence of a healthy flame through flame rectification

ensuring reliable terminal alignment and mounting

Johnson Controls T-4000-3139 Plastic Cover The interchangeable hub design allowsThe Johnson Controls T 4000 3139 is a professional grade horizontal pneumatic thermostat cover designed specifically for the T 4000 Series room thermostats. Engineered for demanding commercial environments, this white plastic cover provides a clean, uniform look for horizontal mounted controllers where a blank faceplate cover is required. As a genuine Johnson Controls replacement part, it ensures a precise fit for single or dual element sensing units