Generac 6000, 3250 Running Watts/3750 Starting Watts, Propane Powered Portable Generator Integrated fuel tank holder secures 20 lb propane tank (sold separately) to unit for easier and safer transportation 20 lb propane tank provides 9.0 hours runtime Low-oil pressure protection safeguards the engine from damage Hardened steel tube cradle for added durability and strength Covered outlets provide added protection from the environment