Edwards EXDC 160 Turbo Molecular Pump Controller Used. Terms of Sale: All sales are final on “as is” items. About Us: McKinley Scientific is the premier provider of pre-owned laboratory equipment with customers in over 60 countries around the globe. We are focused on providing a high quality product that has been through our quality assurance program. Track Page Views With. Auctiva’s FREE Counter. This item is in the category “Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Other Medical & Lab Equipment”. The seller is “mcksci” and is located in this country: US. This item can be shipped worldwide.