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DuroMax XP12000EH - Converting Gas/Propane Generator to Natural Gas (Dual Fuel to Tri-Fuel) - YouTube
Champion Power Equipment 10,000/8,000-Watt Electric Start Gasoline Propane and Natural Gas Tri-Fuel Portable Generator, CO Shield, NG/LPG Hoses 100416 - The Home Depot
Sportsman 7500-Watt Tri-Fuel CO Warning Shut-off with Electric Start Runs on Natural Gas, Propane or Gasoline Portable Generator 807110 - The Home Depot
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Used Cummins GGFD Natural Gas / Propane Generator | 375 Hrs | 35 KW | 9950 Price | CSDG
Generac Protector Series 30kW Natural Gas or Propane Standby Generator Single Phase | RG03015ANAX - The Mobile Grid