GRIP STOPPERS FOR CENTRIFUGE TUBES, ROUND BOTTOM, LDPE (THG) Back Catalog number: 9400787 Availability: In the manufacturer's stock Price on request - + Recommended V0321100 11mm Septa,Red PTFE/White Silicone ,0.050″thick 12,21 € V0822100 Septa, Tan PTFE/white silicone,20mm ,0.125″thick 28,48 € 606HTX-9.5 9.5mm Diameter HT-X High Performance Blue Silicone 35,60 €