Durable DuroMax 7.0 Hp, air cooled OHV engine with low oil shutoff . Heavy duty steel frame with four point fully isolated motor mounts for smooth and quiet operation. Full power panel with engine shutoff switch, volt meter, circuit breaker and power outlets. (2) Fully protected 120V outlets and (1) 120V twist-lock outlet. 8 Hour run time. All steel 4.0 gal. fuel tank with ez-read gauge. Low oil shut-off protects engine. Super quiet muffler reduces engine noise. Specifications: Max AC Output: 4000 watts / Rated AC Output: 3300 watts. Current: 120V, (2) 120v 20A 3-prong outlets (Standard Household plug), (1) 120v 30A twist lock. Low oil shutoff. EPA approved engines. Super quiet exhaust w/built-in spark arrestor. EZ-Pull Recoil start. 7.0 Hp air cooled OHV engine. Fuel Tank Capacity: 4.0 gal. Decibel: 69 dBA. Run-Time: at 50-Percent Maximum Output: 8.0 hrs. Includes: Spark plug wrench? Shipping Weight: 135.00-Pounds.