The Thermistor Stop Screw U217-449 239-44889-00 from Bradford White Corporation is a critical component for ensuring accurate temperature regulation in heating systems. This screw is designed for easy installation and is compatible with various Bradford White models. Made from high-quality materials, it offers durability and resistance to wear, ensuring long-term reliability. The precise engineering of this screw allows for optimal performance in thermistor applications, making it essential for maintaining system efficiency. This product meets industry standards, providing peace of mind for both installers and end-users.