Perfect Compatibility: Specifically designed for Ferroli boilers requiring part numbers 39836700 and 39846880. Accurate Flow Monitoring: Maintains precise water flow readings to optimize system efficiency. Durable Build: Made from high-quality materials for extended reliability and performance. Enhanced System Efficiency: Ensures smooth and uninterrupted operation of the heating system. Easy Installation: Straightforward to fit, minimizing boiler downtime. Cost-Effective Solution: An affordable spare part to extend the life of your boiler., Manufacturer: HTS