20-400 Black PP Plastic Ribbed Skirt Dropper with 91 mm Straight Graduated Glass Pipette

20-400 Black PP Plastic Ribbed Skirt Dropper with 91 mm Straight Graduated Glass Pipette

Medical Grade Printing

Our 20-400 Black Medical Grade Graduated Glass Dropper is a non-child-resistant polypropylene dropper. Above all, our printed glass pipette includes baked graduation marks at .25, .5, .75, and 1 mL. This baked-in printing is lead-free and made to withstand summers in corrosive chemicals.

The benefit of this new ink is it uses a printing method called “permeation.” Whereas black ink is done via silk screen printing which can “react” with certain products, Our new permeated ink has been lab-tested & has been proven to be Non-reactive. 

Silicone Bulb

In addition, Our 20-400 black medical-grade graduated glass dropper includes a large silicone bulb. Which increases the dispensing power to our 91mm straight tip graduated glass pipette between 0.5 mL – 1.0 mL of liquid per stroke. This makes our black graduated glass dropper a perfect closure for precise dispensing. 

For instance, it is great for a variety of uses from aromatherapy and essential oils.

Continuous Thread (CT) Style

This Assembly features a continuous thread dropper cap. Continuous Thread Caps, also called CT, are a variety of caps that share the common characteristic of a threaded closure.

For instance, It does not have a pushdown cap. Anyone can open this cap with ease by twisting it counter-clockwise to open. The ribbed edges make it even easier by adding a great source of friction for a good grip.

Polypropylene Material

Polypropylene marked (PP) has very good resistance to fatigue. For instance, it has an extremely high melting point. (320 degrees Fahrenheit or 160 degrees Celsius)

Neck Thread

In conclusion, This 20-400 Black Medical Grade Graduated Glass Dropper has a 20-400 neck finish. For instance, the first number refers to the diameter (in mm), and the second refers to the closure depth, style, and thread. In addition, this dropper fits our 2 oz (30 ml) Boston round bottle selection that has a 20-400 neck and 91mm depth.

To help you in your product search. Pair this dropper with one of our great “Matching Items” below.