1/2 oz. Clear Boston Round with Black Glass Dropper (18/400)

Glass Bottle Outlet
Availability: 57260 in stock
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Great companion for precision dispensing

This 1/2 oz. clear Boston round glass bottle comes with a handy black glass dropper. The clear glass displays the content accurately and the glass dropper perfectly seals the bottle to ensure the purity of the liquids inside. 

  • Excellent choice for precision dispensing of many products including drugs, laboratory chemicals, perfumes and essential oils
  • The dropper is ideal to dispense a few drops of any liquid or can be used to fill capsules with essential oil mixtures.

This bottle is heavily used in the fields of medicine and cosmetics. 

Order in bulk and save even more!

How do I choose the correct closure size?

Closure sizes are expressed using two different numbers.

  • The first number you see refers to the diameter of the closure or bottle opening.
  • The second number is the Glass Packaging Institutes (GPI) thread finish and refers to the height of the cap and the style of the threads on the closure or bottle.

For example, a closure size of (20/400) has a diameter of 20 mm and fits a bottle with a 400 GPI thread finish.

Some neck sizes are interchangeable. For instance, a 20/410 closure will usually fit on a 20/400 bottle. Also, 410 and 415 are usually interchangeable if the closure is not tamper evident.


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