Vacuum Cups and Suction Cups Push-In Mounting Style Suction Cups for the Printing Industry Vacuum Cup Materials The standard material is Natural Rubber (NR). For more information on the materials, click here. Printing Cup Specifications Product Photo (Click to Enlarge, w/Spec. Dwg.) Part No. and Material Overall Diameter in. (mm) Height in. (mm) Fitting Diameter in. (mm) SUB7NR (Natural Rubber) 0.30 (7.6) 0.37 (9.5) 0.11 (2.8) SUBA17NR (Natural Rubber) 0.83 (21) Long ext. 0.91 (23) Neck, center 0.46 (11.8) 0.24 (6) SUBA10NR (Natural Rubber) 0.39 (10) Long ext. 0.75 (19) Neck, center 0.37 (9.5) 0.24 (6) SUBD12NR (Natural Rubber) Overall Cup 1.10 (28) Small Cups 0.47 (12) 0.28 (7) Overall Cup 0.67 (17) Small Cups 0.20 (5)