Marshall Excelsior MEGR-9984 2-Stage Automatic Regulator
MEGR-9984/9984P: The Automatic Changeover Regulator automatically redirects LP gas vapor flow from an empty designated service cylinder to a reserve cylinder, without interruption of service. It features a green indicator dome which changes to red when the service cylinder needs to be refilled. Zinc die cast. Molded rubber diaphragms. UL Listed. 2nd stage relief mechanism per U.L. 144. Powder coated. 1/4 INV X 3/8 FPT 230,000 btu/h 2 STAGE AUTO CHNG