Tappi a vite fiala autocampionatore 100-2 ml, 9 mm, PTFE rosso/silicone bianco Setta 9-425
【Easy to use】:9mm Bi-layer includes silicone and PTFE. Pre-slit Silicone septa for multiple injections. PTFE-lined screw cap for organic samples. 【9mm liner】: Pre-slit liner, more easy to pierce,protect injection needle.