19/38

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  • Full length stoppers, closed at bottom, with penny head Conform to ASTM Standard E 675

  • Stopper Size 19/38

    DWK Life Sciences (Kimble)

    Stoppers are used with laboratory glassware such as flasks and separatory funnels. Sizes Standard Taper 10/30 through Standard Taper 19/38 are solid 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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