Walmart offers the Sportsman Sandstorm 3,500-watt Dual Fuel Generator for $269.99 with free shipping. That's tied with our mention from two weeks ago and the lowest price we could find by $70. This generator features 3,500 running watts (4,000 peak watts), a 7-HP engine, and 5-foot hose. It runs on unleaded gasoline or propane gas.