It can be adjusted with the appropriately sized wrench, etc. Everything appears to be in excellent condition. The item "Varian 941-6501 VacSorb Pump with Manual Right Angle Valve" is in sale since Saturday, September 4, 2021.This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical & Lab Equipment, Devices\Vacuum Regulators". The seller is "lzx_scientific" and is located in Irmo, South Carolina. This item can be shipped worldwide.