The Nieco 2049-A 1/2" FPT NAT Gas Pressure Regulator ensures stable, reliable gas flow by maintaining a consistent outlet pressure of 3–6" WC for safe and efficient equipment performance. This regulator works by reducing incoming natural gas pressure to a controlled level, helping appliances operate smoothly and preventing fluctuations that could affect burner function. Its durable co... https://partsfe.com/pressure-regulator12-nat-for-nieco-part-2049-a