ANVER Vacuum Cups and Suction CupsModel: OP-20X100 SEALING RINGPart Number: A-3350028 ANVER and P-Series Description and Part No. Diameter in. (mm) Height in. (mm) Load Capacity at 24 in. Hg (609.6mm Hg)[2:1 Safety Factor] lb (kg) OP-20X100 SEALING RING (Ethylene-Propylene)A-3350028 33.50.028 OP20X100.50 0.30 [W] (7.6) [W] 0.41 (10.4) N/A