MKS Instruments 99F0077 UHV Vacuum Isolation Angle Valve ISO80 ISO-K Working. This MKS Instruments 99F0077 UHV Vacuum Isolation Angle Valve is used working surplus. The body has some scuffs and there is a small ding to the outer edge of the horizontal flange (see photos). Only items pictured are included: If a part is not pictured, or mentioned above, then it is not included in the sale. Pictured test equipment is not included or available for sale. For items with multiple quantities: The pictured item is not necessarily the one that will be sent. Serial numbers or country of manufacture may vary. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Pumps & Pump Accessories\Vacuum Pumps\Other Vacuum Pumps". The seller is "usedeqsales" and is located in this country: US. This item can be shipped worldwide.