Description20mm Moulded Septa Butyl/PTFE, grey, 50° shore A, 3.0mm SpecificationsFeaturesDocuments 20mm Moulded Septa Butyl/PTFE, grey, 50° shore A, 3.0mm Diameter (d) - mm 20 Durometer 45° shore A Thickness (w1) - mm 3 Material Butyl / PTFE Quantity per pack 1000 stuks in PE-zak