Image KF Short Weld Flange Vacuum Fitting Product Options Part Number Flange Size Material DVF-A10GC KF10 304 Stainless steel DVF-A16GC KF16 304 Stainless steel DVF-A25GC KF25 304 Stainless steel DVF-A40GC KF40 304 Stainless steel DVF-A50GC KF50 304 Stainless steel