2 oz. Amber Boston Round with Large Bulb Black Glass Dropper (20/400) (V4) (V12)

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Quantities: 24 Pack
Sale price$28.99 Regular price$38.56
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Vendors Example

Our various V#’s are to differentiate between our many suppliers. The only differences you will see in different V#’s will be slight cosmetic changes, sometimes unnoticeable, as well as slight differences in shape/sizing (in regards to bottles). However, all products of the same type will function the same. If you have any other questions,just let us know!

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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