White Rodgers F89-0213 Immersion Well 3/4" NPT with 1-13/16" Shank

The White Rodgers F89-0213 is a brass immersion well designed for use with aquastat and temperature control systems in hydronic heating applications. This component provides a reliable interface for temperature sensors to accurately monitor water or fluid temperatures in boilers, hot water tanks, and other hydronic equipment.

Key Features:

• 3/4" NPT threaded connection for secure installation in tanks and pipes
• 1-13/16" shank length provides proper sensor immersion depth
• Durable brass construction resists corrosion in wet environments
• Compatible with standard aquastat controls and temperature sensors
• Allows for accurate temperature sensing without direct sensor contact with fluid

This immersion well creates a protective sleeve that isolates the temperature sensor from direct contact with water or other fluids, while still allowing efficient heat transfer for accurate temperature readings. The well can be installed and removed without draining the system, making sensor maintenance and replacement more convenient.