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

    $6.00
    There is only 1 item left in stock.

    This clear ground glass stopper (also known as a ground glass joint) 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.  In very good condition.