Brass Flow Sensor GSWH2

Precision water flow sensor engineered specifically for Girard GSWH-2 tankless water heaters. Body and internal components fabricated from high-purity, rust-resistant brass. Overall length: 63.5 mm. Thread specification: 3/4-inch NPT. Unit weight: 180 g. Functional flow range: 0.45 to 6.0 gallons per minute. Employs a calibrated paddle-wheel mechanism producing analog pulse output that matches the GSWH-2’s factory-defined flow-to-pulse mapping—no additional hardware, firmware updates, or manual calibration steps needed. Designed for cold water inlet line integration. Certified for use in permanent off-grid residences, mobile RV applications, and retrofit projects—especially where legacy GSWH-2 units must be upgraded to comply with evolving UK and European campsite water pressure, flow rate, and safety reporting standards. All units traceable to Girard’s official Rev. C (2022) component specification sheet.