GRIP STOPPERS FOR CENTRIFUGE TUBES, ROUND BOTTOM, LDPE (THG) Back Catalog number: 9400787 Availability: In the manufacturer's stock Price on request - + Recommended 610040G-20 20mm x 0.100" PTFE/Gray Butyl Rubber Septa for 20m 64,70 € 604060-09 9mm x 0.040" PTFE/Silicone/PTFE Septa, pk/100 25,86 € 604040-10F 10mm x 0.040" PTFE/Butyl Rubber Septa 23,22 €