SPECIFICALLY DESIGNED FOR GSWH2: This water flow sensor is built for GSWH2 tankless water heaters. Replacement part number 2022107584 guarantees an exact fit with no modifications required, ensuring seamless integration and peak efficiency. BRASS CONSTRUCTION: Made from grade brass, this sensor resists rust and performs well in varied water conditions. Its durable build supports reliable daily operation and longterm integrity. STRAIGHTFORWARD INSTALLATION: Tool replacement. Follow simple steps to restore full functionality in minutes, minimizing downtime and frustration. PRECISE PERFORMANCE: Flow capability 35; designed for up to 90 households. Delivers consistent and accurate flow detection to support proper temperature control and safe operation. Typical applications Routine replacement in a busy home to restore steady hot water and reliable heater performance. Use in hard water areas where brass construction offers enhanced durability and longer life. Upgrading an ondemand GSWH2 system that serves multiple bathrooms to improve flow sensing accuracy and overall efficiency.