Kurt J. Lesker QF40XQF25C Stainless Steel Conical Reducer Nipple / Spool for HV High Vacuum Systems, Foreline Vacuum Plumbing & HV Chamber Ports - QF40 / KF40 to QF25 / KF25 BRAND NEW / NOS
The KF (QF) flange is used for foreline vacuum plumbing and for simple HV chamber ports.
Flange Size: KF40/KF25
Dimensions of A: 0.88"
Dimensions of B: 1.57"
Weight: 1 lbs (0.45kg)