ANVER Vacuum Cups and Suction CupsModel: Flat F25-P30Part Number: A-F25-P30 ANVER and P-Series Description and Part No. Connection Thread Size Static Diameter * Static Height * Load Capacity* at 24 in. Hg (609.6mm Hg)[2:1 Safety Factor] Pull-Off Capacity at 27 in. Hg (685.8mm Hg)[1:1 Safety Factor] Level Compensator Suspensions (Click Image for More Info) A-F25-P30(Thermo-elastic Polyurethane)** N/A 1.08 in. (27.5 mm) 0.37 in. (9.4 mm) 2.49 lbs (1.13 Kg) 5.6 lbs (2.54 Kg) ** These are special cups that may require minimum purchase (contact Anver Sales for additional information).