DescriptionDURAN® Keys for stopcocks with 3 grooves PTFE, NS 21.5 double oblique 6 mm and 3 part retaining device SpecificationsFeaturesDocuments DURAN® Keys for stopcocks with 3 grooves PTFE, NS 21.5 double oblique 6 mm and 3 part retaining device Material Glas Colour Helder