The Geyser NRV Valve is a reliable plumbing component designed for installation on a water heater’s inlet line. It allows water to flow toward the geyser while helping prevent reverse flow into the supply line. The sturdy metal construction provides durability, while the threaded connection ensures a secure and convenient fit. Suitable for domestic geysers and water-heating systems, it supports safer and more efficient water flow management. Installation by a qualified plumber is recommended.