·         KIMAX® tube with a heavy wall to withstand higher speeds in centrifuging

·         Marking spot is sandblasted

·         Autoclavable black phenolic caps with cemented-in rubber liners are supplied unattached

·         Replacement cap is 45066B-24

·         Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements