Headspace Vial ND20 clear glass for CTC PAL (Varian, Gerstel, Atas, Shimadzu Headspace-Vial, ND20, 20 ml volume,75,5 x 22,5 mm, clear glass,DIN crimp neck, long neck, rounded bottom, 100 pieces in re-sealable PP Box The identification of the suitable consumable for a certain instrument is especially in headspace extremely difficult.