Marshall Excelsior Excela-Flo Two-Stage Automatic Changeover Regulator - MEGR-253L

The MEGR-253L Excela-Flo Two-Stage Automatic Changeover Regulator by AP Products is designed for LP-gas vapor systems. This vertical-mount regulator ensures seamless gas flow switching between cylinders, ideal for RV and standard appliance use.

Features:

• Automatic two-stage changeover system maintains continuous gas supply without manual intervention
• Durable zinc die-cast body with a spring-loaded diaphragm for reliable pressure regulation
• Vertical mounting design with 3 1/2" on-center holes for secure installation in compact spaces
• Equipped with 1/4" female inverted flare inlet and 3/8" FNPT outlet connections for standard LP setups
• Includes 1/8" FNPT pressure taps that are factory plugged for optional monitoring
• Built-in internal relief valve enhances safety by preventing overpressure conditions
• UL listed to UL 144 standards, ensuring compliance with safety requirements

Specifications:

• Delivery Pressure: 11" W.C
• Maximum Inlet Pressure: 100 PSIG
• Capacity: 150,000 BTU (Stage I), 100,000 BTU (Stage II)
• Mounting Hole Spacing: 3 1/2" on center
• Inlet Connection: 1/4" Female Inverted Flare
• Outlet Connection: 3/8" FNPT
• Pressure Tap Size: 1/8" FNPT (plugged)
• Finish: Zinc Die-Cast Metallic

Compatibility:

• Designed for LP-gas vapor systems with dual service cylinders and automatic reserve switching
• Suitable for RVs and appliances requiring vertical-mount regulators with specified fittings