Kimble 14960 KIMAX Heavy Duty Serum Bottles are designed to prolong life expectancy with harder than normal usage. Ideal for packaging and storage. Rounded shoulders. Neck is tooled for a uniform fit with a #8 rubber stopper. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.
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