Mine is a "Q-industries" MV50... there are a bunch of clones out there, mostly the same, with different names. Google MV50 compressor and you'll find a bunch of links. Mine came from Pep Boys a few years ago (one of the boys was down in Montana and picked us up a few), but being from north of the 49th parallel, I can't tell you where to get em these days. Someone said Costco had them, but I can't speak to that... I do know it works very well, with some small tweaks, and it compared favourably with the more expensive ones in a test that I read somewhere...