The KF25 39 Bellow is a corrugated stainless steel pipe that connects to your vacuum flange or hard pipe. These 39 inch malleable pipes allow for some error as apposed to hooking up a hard pipe. Don’t forget other KF25 fittings and accessories:
100% stainless steel. 100% USA made.
Stretch and bend your bellow into position before installation. Not doing so will make the bellow shrink, putting stress on or damage glassware, voiding limited warranties.