It no longer has the label, so I don't know what the brand is, but it's no bigger than a football. I'm not sure, but I think I got it at Harbor Freight or Northern Hydraulics. It came with the gauge, water trap and regulator for $120. Maximum PSI of 50. I added a 5 gallon holding tank and the connectors after that. Total investment about $150. The mid sized one (90 PSI) and the big one (150 PSI) are in storage. So is the dining room table they're mounted on. lol