Comparing gallons to gallons, a six-gallon McGraw air compressor is available for $129.99 at Harbor Freight, and a Fortress six-gallon compressor costs $159.99. The Fortress option offers more PSI ...

Harbor Freight is a great place to look for a budget air compressor and offers a variety of choices. McGraw had the two most budget-friendly options. The $59 3-gallon compressor has two nearly ...

But it's not quite that simple. We looked for the ideal budget-friendly compressor from Harbor Freight and came up with two, both from McGraw: the 3-gallon, 1/3 horsepower, 110 PSI oil-free ...