Resideo 123870A/U Aquastat well 3/4 x 3 in (1-1/2 in insulation short) replacement 121371B

Product Description

Resideo 123870A/U is a copper aquastat immersion well designed to hold a temperature sensing bulb and prevent leakage in the controlled medium. The well measures 3/4 x 3 in with a 3 in insertion depth, includes a 1-1/2 in insulation short, and uses a 3/4 in NPT thread. It is compatible with Aquastat controllers such as L4006 and L4081 and is intended for HVAC, boiler, and water heater temperature sensing.

• Copper construction with 3/4 x 3 in well body and 3 in insertion depth
• Includes 1-1/2 in insulation short and 3/4 in NPT thread for secure installation
• Compatible with Aquastat controllers (L4006, L4081) and a functional replacement for 121371B

Product Highlights

Copper immersion well for aquastat temperature sensing; 3/8 in bulb diameter; 3/4 in NPT thread; 1-1/2 in insulation short.

Product Information

Standard Information

• Brand: RESIDEO
• Manufacturer Part Number: 123870A/U
• Country of Origin: Import