Marshall Excelsior Co. MEGR-253HP Excela-Flo Two-Stage Automatic Changeover LP Gas Regulator

The Marshall Excelsior Co. MEGR-253HP Excela-Flo is a high-capacity two-stage automatic changeover regulator designed for LP gas applications in RVs, motorhomes, and trailers. This regulator automatically redirects LP gas vapor flow from an empty service cylinder to a reserve cylinder without interruption of service, ensuring continuous gas supply for appliances requiring more than 200,000 BTUs.

Key Features:

• Two-stage design for consistent pressure regulation and optimal performance
• Automatic changeover system with easy-to-read visual indicator (green when in service, red when cylinder needs replacement)
• High capacity output: 350,000 BTU maximum in first stage, 200,000 BTU in second stage
• Maximum inlet pressure rating of 250 PSI
• Fabric-reinforced molded diaphragm with O-ring bonnet/body seal for reliable operation
• Internal relief valve, spring-loaded for safety
• Durable die-cast zinc construction with raw zinc/powder coat exterior finish
• UL Listed to UL 144 standard for safety compliance
• Mounting holes spaced 3-1/2" on center for secure installation

Specifications:

• Inlet Connection: 1/4" Female Inverted Flare
• Outlet Connection: 3/8" FNPT (Female National Pipe Thread)
• Outlet Pressure: 11" WC (water column)
• Installation: Vertical mount

The MEGR-253HP is specifically engineered for demanding applications in modern recreational vehicles and is compatible with high-flow Type 1 QCC pigtails. Its robust construction and safety features make it an ideal choice for reliable, long-term propane gas regulation.