PerkinElmer 20MM Headspace cap and septa preassembled - N9302976

20MM Headspace cap and septa preassembled 0.005” THICK NATURAL PTFE / 0.120” EXTREME LOW BLEED WHITE SILICONE (0.125” TOTAL THICKNESS) Septa Regular crimp top septa without pressure release feature 1000 CAPS WITH SEPTA INSERTED Septa is conditioned to reduce possible siloxane contamination for headspace applications Material : 47 durometer silicone and 0.005” thick skived PTFE Max temp 210C.