Vacuum Cups and Suction Cups Model: Universal 2.5 Bellows Part Number: PBL8-SI Vacuum Cup/ Suction Cup No. Flared Overall Dia. in. (mm) D Overall Dia. d Fitting Dia. H Static Height Load Capacity* at 24 in. Hg (609.6mm Hg) [2:1 Safety Factor] Recommended Fitting (Click for Info) RFQ Suspension Group for Cups PBL8-SI 0.34 in. (8.6 mm) 0.31 in. (8 mm) 0.31 in. (8.0 mm) 0.83 in. (21 mm) 120 grams