ANVER Vacuum Cups and Suction Cups Model: Universal 2.5 Bellows Part Number: B2.5-42-NBR Vacuum Cup Part Number and Material Flared Overall Dia. in. (mm) D Overall Dia. in. (mm) 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) B2.5-42-NBR (Nitrile) 3277 1.75 (44.6) 1.69 (43.0) 0.31 (8.0) 1.81 (46.0) 0.94 (24.0) 1.190 (19.50) 4.0 lbs (1.8 Kg)