This High Vacuum Shutter actuator is designed to operate a large high vacuum shutter. The shutter actuator is setup with a dual position pneumatic operator, a 1/2″ shaft ferrofluidics feedthrough, a 2.75″ CF mounting flange, and limit switches. The listed price does not include shipping charges. The unit may be returned within 14 days if you are not satisfied. US SALES ONLY. Visit our Used Vacuum Equipment page for other vacuum and scientific equipment.