The standard tool of the glass industry, the N4950 Vacuum Suction Cup features an all-metal pump and handle for maximum durability in the shop or at the installation site. Its flat vacuum pad is ideal for handling all kinds of windows and other flat glass products. Supplied with protective carrying case. 8" [20 cm.] diameter. 125 lbs. [57 kg.] capacity per vacuum cup. Also available with textured surface vacuum pad for handling pattern glass.
Woods 8" POWR-Grip Maintenance Article