Marshall Excelsior Twin Stage Regulators – Straight Vent

• MEGR291 – Stock #3935
• MEGR291H High Capacity – Stock #3931

MEGR-291 and MEGR-298 Twin Stage Regulator Brochure
MEGR-291H High Capacity Twin Stage Regulator Brochure
MEGR291, MEGR298, and MEGR300 Series Installation Instructions

**To maximize the lifespan of the regulator, it must be installed above the liquid level of propane: directly connect to service valve, or wall mount above the propane cylinder(s).

**When connecting directly to the service valve, use a 90 Degree Vent with the vent facing downwards

MEGR-291 Features/Specifications:

• Can be used in Commercial and Residential applications
• Total BTU Capacity: 175,000 BTU
• Pressure Output: 11″WC, ~0.5PSI
• Max. Inlet Pressure: 250 PSI
• Inlet Connection: 1/4” FNPT
• Outlet Connection: 3/8” FNPT
• Exterior Finish: Raw Zinc / Raw Zinc
• Diaphragm: Fabric Reinforced Molded with O-Ring Bonnet / Body Seal
• Diaphragm Type: Internal Relief – Spring Loaded
• Bonnet / Body Material: Die Cast Zinc
• Listings: LISTED / UL 144
• Mounting Holes: 3-1/2” On Center
• Pressure Taps: 1/8” FNPT Plugged

The MEGR-291 two-stage regulators are approved for use in portable applications and outdoor cooking appliances utilizing low pressure. These regulators feature all zinc body construction,  High and low 1/8” NPT pressure tap ports, an integral drip lip vent and optional 90 degree vent location. The MEGR-291 series two stage regulator meets RVIA, UL and NFPA test requirements.

MEGR-291 Features/Specifications:

• Can be used in Commercial and Residential applications
• Total BTU Capacity: 225,000 BTU
• Pressure Output: 11″WC, ~0.5PSI
• Type: Two Stage
• Max. Inlet Pressure: 250 PSI
• Inlet Connection: 1/4” FNPT
• Outlet Connection: 3/8” FNPT
• Exterior Finish: Green Powder Coat / Raw Zinc
• Diaphragm: Fabric Reinforced Molded with O-Ring Bonnet / Body Seal
• Diaphragm Type: Internal Relief – Spring Loaded
• Bonnet / Body Material: Die Cast Zinc
• Listings: UL LISTED / UL 144
• Mounting Holes: 3-1/2” On Center
• Pressure Taps: 1/8” FNPT Plugged

The MEGR-291H High Capacity Compact Integral Two Stage Regulator is approved for use in nearly all portable applications and light duty domestic home installations. Ideally suited for RV, outdoor appliances, cabins, seasonal homes, gas fire places, water heaters, ranges or the other moderate to low demand domestic home installations. These regulators feature all zinc body construction, green powder coated bonnets (identify high capacity model), high and low 1/8” NPT pressure tap ports, an integral second stage drip lip vent, and optional standard or 90 degree vent locations. The MEGR-291H series compact high capacity integral two stage regulator meets RVIA, UL, and NFPA test requirements.