Uncanny Artist Ephemera and Objects for Artists and Collectors
  • Pyrex Laboratory Ground Glass Stopper

    $6.00
    There is only 1 item left in stock.

    This is a clear Pyrex Laboratory Ground Glass Stopper (also known as a ground glass joint), which is commonly used with laboratory glassware mainly because of the nonreactivity of its borosilicate glass.  This stopper has a 2.5" in diameter horizontal top with a 2" long slightly tapered frosted solid glass stem (1.25" in diameter at the bottom).  The top is marked "S  Pyrex  34" in raised letters and numbers.  This Pyrex Laboratory Ground Glass Stopper is in very good condition.