Brass GSWH2 Flow Sensor

Dedicated water flow sensor for Girard GSWH-2 tankless water heaters. Manufactured from high-purity, rust-resistant brass for durability in demanding mobile and off-grid applications. Overall length: 63.5 mm. Threaded interface: 3/4-inch NPT. Net weight: 180 g. Accurate measurement across 0.45–6.0 GPM. Internal paddle-wheel design produces analog pulse output natively interpreted by the GSWH-2 control board—zero configuration required. Installs directly into the cold water inlet line. Validated for both permanent installations (e.g., tiny homes, off-grid cabins) and temporary or retrofitted deployments (e.g., upgrading vintage GSWH-2 units to meet modern UK campsite water hygiene and pressure regulation standards). Specifications conform to and are traceable against Girard’s official component specification sheet Rev. C (2022).