Marshall Excelsior Excela-Flo Automatic Changeover Regulator - High Capacity - MEGR-253H

The MEGR-253H High-Capacity Excela-Flo Automatic Changeover Regulator by AP Products is designed for dual-cylinder RV propane systems. This two-stage regulator automatically switches between tanks and features a clear visual service indicator for easy monitoring.

Features:

• Automatic changeover system ensures seamless switching between dual propane cylinders without manual intervention
• Two-stage design provides consistent, stable low-pressure output for reliable RV appliance operation
• Visual indicator clearly shows cylinder status with green and red signals for service readiness
• Internal spring-loaded relief diaphragm enhances safety by managing excess pressure within the regulator
• Durable die-cast zinc body finished with raw zinc and powder coating for long-lasting exterior protection
• Mounting holes spaced 3 1/2" on center allow for straightforward installation in standard RV setups
• Fabric-reinforced diaphragm with O-ring bonnet seal ensures leak-resistant and durable performance
• Meets UL, RVIA, and NFPA safety standards for dependable use in recreational vehicles

Specifications:

• Max Inlet Pressure: 250 PSI
• Outlet Pressure: 0.4 PSI (≤11 in. W.C.)
• BTU Capacity: 350,000 BTU/hr (Stage 1), 200,000 BTU/hr (Stage 2)
• Inlet Connection: 1/4" Female Inverted Flare
• Outlet Connection: 3/8" FNPT
• Pressure Taps: 1/8" FNPT (Plugged)
• Bonnet/Body Material: Die Cast Zinc
• Mounting Hole Spacing: 3 1/2"
• Country of Origin: USA

Compatibility:

• Fits standard RV dual-tank LP systems with 1/4" female inverted flare inlets and 3/8" FNPT outlets
• Designed as a direct replacement for automatic changeover regulators in compatible RV propane setups