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NW40
Vacuum Fittings in size NW40/QF40/KF40 and ISO40. This is a modular snap together approach to assembling any vacuum fittings systems. Pumps connecting to just about any equipment. Reusable. Good for use with pumps and systems to 1x10-6 Torr. Industry standard. Leak tight sealing. User can be assured of maximum pump performance and less time chasing higher pressure issues causing systems to under perform.