Perfect Compatibility: Designed to fit Alpha boilers requiring part numbers 3.013211 and 3.014805. Reliable Water Flow Detection: Accurately monitors DHW flow, ensuring consistent boiler activation. Durable Design: Constructed from robust materials to withstand regular usage and high water pressure. Optimized Performance: Enhances the efficiency of the domestic hot water system for reliable heating. Simple Installation: Easy-to-fit design reduces installation time and effort. Cost-Effective Solution: A budget-friendly spare part to keep your boiler running smoothly., Manufacturer: HTS