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Welch 2163B-01 ILMVAC High Capacity-High Vacuum PumpThese premier Welch manufacturered pumps are high capacity, high-vacuum, and are built for chemical-duty. These PTFE dry vacuum pumps provide a variety of ultimate pressures and displacement to suit your application needs.With PTFE (polytetrafluoroethylene) heads, perfluoroelastomer valves, and PTFE-coated molded diaphragms, these pumps are highly resistant to harsh chemical vapors. The intake threads are NW 16 - 1/4" NPT.Pumps evacuate an enclosed area and move fluid or gas from one location to another. Pump choices are guided by the specific application and required substance compatibility.This was in excellent working order prior to removal from a recently closed business.Note: 3 of the vacuum supply nylon junction blocks need to be replaced.Additional Prep Fees May Apply