Johnson Controls T-4100-1 Thermostat 30067439-890 Is there a difference between

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Johnson Controls T-4100-1 Thermostat 30067439-890 Is there a difference betweenThe Johnson Controls T 4100 1 is a professional grade single temperature pneumatic thermostat engineered for precise proportional control of industrial and commercial HVAC systems. This direct acting pneumatic thermostat features a low volume output design, making it a reliable drop in replacement for legacy pneumatic control systems. Operating within a dial range of 55 to 85? F, the T 4100 1 is optimized for vertical mount thermostat configurations