Pre-Slit Red PTFE/White silicone septa, pk/100 Back Catalog number: PL30A-010 Availability: In the manufacturer's stock Price on request - + Recommended 38-140 22.5mm x 0.015" PTFE Septa, pk/100 439,00 Kč 5001L2-20 20mm Gray Chlorobutyl Lyophilization Stopper - 2 P 7 277,00 Kč 610050-13 13mm x .100" PTFE/Silicone - 10mil PTFE/90mil Sili 986,00 Kč