Compatibility assurance: Specifically designed for GSWH2 tankless water heaters, this water flow sensor integrates smoothly with your current setup, delivering accurate flow readings and stable operation. Brass material: Made from brass for corrosion resistance, ensuring reliable performance in hard water and challenging environments. Quick installation: Simple replacement of the old sensor with no special tools or skills, and its compact design fits standard GSWH2 installations, reducing downtime. Exact replacement part: Part number 2022107584 guarantees a precise fit and full compatibility with your tankless heater. Use scenarios Routine maintenance: a failing flow sensor to restore accurate flow measurement and consistent hot water delivery. Hard water environments: Upgrade to a corrosionresistant sensor to extend service life and reduce maintenance frequency. System retrofit: Install as part of a GSWH2 upgrade to ensure reliable sensing and quick onboarding without extensive disassembly.