Eaton uses a Chinese pump, however, they tend to use a too large of a pump and turn it slow, so they are underworked and should last well. A guy on another discussion group who is a compressor guru said those pumps are pretty indestructable, but you will probably not ever be able to get parts for them when you need them.... like 20 years from now... but who knows. Other than that, from my careful examination of the specs, and apparently the components they use are of good quality, and they are probably a good deal. They seem to be an honest outfit. I do not have any firsthand experience however. I did talk with them and research their products alot, ended up buying something else but nothing againist them at all.
Charles