The Emerson-Fisher R622H-HGJ First Stage Regulator is a high-performance LP-gas pressure regulator designed to reduce tank pressure for residential and light commercial applications. Featuring an 8–12 psig spring range, this model delivers consistent outlet pressure to ensure safe and efficient operation of downstream appliances. It comes equipped with a durable POL inlet connection and a 1/2" NPT female outlet for secure, reliable installations. Engineered for long-lasting performance in demanding environments, the R622H-HGJ is ideal for use in two-stage LP-gas systems, where it serves as the first stage to reduce pressure before it reaches the second stage regulator.