ANVER Vacuum Cups and Suction Cups Model: Universal 1.5 Bellows Part Number: B1.5-20-NBR Vacuum Cup Part Number and Material D Flared Overall Dia. d Fitting Dia. in. (mm) H Static Height in. (mm) A Compressed Height in. (mm) Volume in.3 (cm3) Load Capacity* 2 to 1 Fitting Group (Click Image for More Info) Level Compensator Suspensions (Click Image for More Info) B1.5-20-NBR (Nitrile) 0.71 (18.0) 0.16 (4.0) 0.62 (15.8) 0.41 (10.5) 0.070 (1.20) 1.1 lbs (0.5 Kg)