ANVER Vacuum Cups and Suction Cups Model: Universal 2.5 Bellows Part Number: B2.5-5-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 A Compressed Height Volume Capacity* 2 to 1 Load Capacity* at 24 in. Hg (609.6mm Hg) [2:1 Safety Factor] Fitting Group (Click Image for More Info) Level Compensator Suspensions (Click Image for More Info) B2.5-5-NBR (Nitrile) 3256 0.22 in. (5.6 mm) 0.22 in. (5.7 mm) 0.16 in. (4.0 mm) 0.53 in. (13.5 mm) 0.41 in. (10.5 mm) 0.002 in.3 (0.04 cm3) 0.15 lbs (0.07 Kg) 55 grams