Size12Suction cup materialNitrile rubber NBRMaterial hardness [Shore A]55 Shore ANipple materialAluminumConnectionG1/8"-FNumber of folds2.5Vacuum connectionG1/8"-FKE-FSG 12 NBR-55 G1/8-IGDesign Data Attribute Value d2 5 mm dn 3.50 mm Dmax(S) 13 mm Ds 12 mm G1 G1/8"-F H 33 mm LG1 8.50 mm SW1 14 mm Z (Stroke) 7 mm