DescriptionDURAN® Keys for stopcocks with 3 grooves PTFE, NS 18.8 double oblique 4 mm and 3 part retaining device SpecificationsFeaturesDocuments DURAN® Keys for stopcocks with 3 grooves PTFE, NS 18.8 double oblique 4 mm and 3 part retaining device Material Glas Colour Helder