KIMBLE® Hollow Glass Pennyhead Stoppers, 14/20

  • Sizes Standard Taper 10/18 through Standard Taper 19/22 are solid
  • Sizes Standard Taper 24/25 and larger are hollow
  • 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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