ÖÖÖ.actually, it is a Gast vacuum pump. It is a ľ hp with gauges, filter/mufflers and another small filter of some kind. Bought it from a machinist friend who goes to auctions and gets all kinds of stuff very reasonably. I paid him $100.00 for this. He probably got it for $5.00 but I donít care, itís still a good price. He has had it open and says it looks like it has never been used. Iíll probably use it for stabilizing pen blanks and small wood items. Might get the necessaries (expensive) to make a vacuum chuck for the lathe. But that will be down the road a bit. There is no end to what can be bought for a shop.