cpo-outlets via eBay offers the factory-refurbished DeWalt 4.5-Gallon Wheeled Portable Air Compressor, model no. D55146R, for $189.88 with free shipping. That's the lowest total price we could find for a refurb by $60. It features a vertical stand, 2" gauges, a metal console panel, and 10" pneumatic wheels. A 1-year DeWalt warranty applies.