I don't have the address handy but TPTool company has a nice site and a good bit of reading/facts about air compressors and how to figure just what you need. it would be worth the time to check it out. I think it is tptool.com????? My skat blast bead cabinet came from there and now I wish I had sprung for the Quincy Compressor. Pricey but the best there is...even according to the local Total Compressor shop guys who sell several brands.