FWIW: Hi, just bought one off the BAY and being the mechanical fussbudget that I am, I did notice a rather surprising defect common to this model/version. The front hooded casters are all cheap junk / defective. They have no support bearings above or below- causing the entire caster to move in an extremely sloppy and loose fashion, resulting in the caster itself scraping against the side of the lower tank, severely limiting its movement. I did send them an email, waiting for a response. Otherwise a great older canister machine, surprising that they dropped the ball at the last inning on design of this model. THE FIX: There is a fix for this involving replacement of the 2 casters that I figured out, and it's not a simple one either but the end result works great. Anybody interested post a request. SEE YA!