Resideo 123870A 3/4" Copper Well Assembly 1.5" x 3"

The Resideo 123870A 3/4" Copper Well Assembly is designed for accurate temperature sensing in hydronic heating systems and other HVAC applications. It safely contains temperature-sensing bulbs within a system. The 3/8” bulb is inserted into the 3” copper well, which has 1.5” insulation depth to protect the bulb and to ensure that the sensor is not in direct contact with the fluid to take the readings. It has a 3/4” NPT connection and 255 PSI pressure rating and can be easily useded into high-performance equipment. This copper well assembly increases the service life of the sensors, reduces power consumption and lowers the maintenance requirement by shielding the sensing elements in tough HVAC conditions.