Description
The Copeland White-Rodgers F89-0033 is a 3/4" NPT immersion well designed to house and protect temperature sensing bulbs in HVAC and hydronic heating systems. This well is compatible with controls using a 3-1/2" x 7/16" sensing bulb, providing a secure interface for accurate temperature measurement while isolating the sensor from direct fluid contact. Commonly used in boilers, water heaters, and hydronic systems, it allows for easy servicing or replacement of controls without draining the system. Built for durability, it ensures reliable performance in demanding heating applications.
Key Features
- 3/4" NPT immersion well for temperature control applications
- Designed for 3-1/2" x 7/16" sensing bulb compatibility
- Protects sensor while allowing accurate temperature readings
- Suitable for boilers, water heaters, and hydronic HVAC systems
- Allows easy removal and replacement of sensing controls
- Durable construction for long-term system use







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