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When the service cylinder is empty these regulators automatically change the withdrawal to the reserve cylinder with no interruption of service. These smaller automatic changeover regulators are rated up to 160 000 btu/hr.
These large second stage regulators are manufactured by Marshall Excelsior and are perfect for larger homes and light commercial applications. These regulators have a very high btu output and a cast iron body. These large second stage regulators are rated up to 2,300 000 btu/hr.
Economy integral two-stage regulators for RV and mobile home service. The second stage is adjustable (by qualified propane personnel only). Rated up to 500 000 btu/hr.
These larger second stage regulators are manufactured by Fisher. These regulators are capable of handling BTU volumes up to 875 000 BTU/hr at 11" WC.