THIS IS A WORKING GAST VACUUM PUMP 0523-U4F-G582DX. Thank You For Looking At Are Item35. The item "GAST VACUUM PUMP MODEL # 0523-U4F-G582DX" is in sale since Tuesday, June 06, 2017. This item is in the category "Business & Industrial\Healthcare, Lab & Life Science\Lab Equipment\Pumps". The seller is "buyhitek" and is located in Milton Freewater, Oregon. This item can be shipped worldwide.