Resideo - Honeywell Home 121371L Aquastat Sensor Well Assembly

The Aquastat Sensor Well Assembly 121371L delivers precise immersion sensing for boiler control systems. Designed as an immersion type with a capillary sensor, it provides accurate temperature readings in challenging conditions.

Built for durability, this copper sensor well features a 3/8 inch diameter x 3 inch length bulb, a 1/2 inch threaded connection, and a 3 inch insulation depth. The capillary diameter is 5/64 inch, and the assembly is rated for 255 PSI at 300°F, ensuring dependable performance in high-temperature boiler environments. Includes mounting clamp 121371.

• Immersion Type sensor well for direct boiler immersion
• Capillary sensor with 5/64" diameter capillary
• Material copper construction for durability
• Bulb Size 3/8" diameter x 3" length
• Threaded Connection 1/2" threaded fitting for easy installation
• Insulation depth 3" reduces heat loss
• Pressure/Temp Rating 255 PSI at 300°F
• Includes mounting clamp 121371