I was in a local Pawn shop today and ran accross three vacuum pumps on the shelf. Two of them caught my eye because they looked exactly like the Gast Pumps often recommended for our usage. The two are GE Pumps, G213DX and are available for $99.00 each. The third is a Deep Vacuum 2 Stage "Fast Vac DV85" 3CFM it lists at $159.00. Knowing nothing about these things, I was wondering if this might be a find or not worth the effort. I couldn't find them on the internet. Just found this link on Ebay that looks just like the third pump. The Ebay one looks better,