12 Years of Experience in Every Piece

Our factory has made glass droppers for 12 years. We started with 3.3 borosilicate glass. We focus on only one thing: making a good dropper. This large glass dropper is our solution for labs that need to move liquids in large amounts. It is more than just a tube. It is the result of our 12 years of work.

Parameter	Specification
Material	3.3 Borosilicate Glass, Silica Content ≥80%
Max Temperature	300°C, withstanding 150°C thermal shock
Wall Thickness	0.8-1.0 mm, uniform and bubble-free
Length	180 mm
Outer Diameter (Body)	12 mm
Outer Diameter (Tip)	5 mm
Total Capacity	5 ml
Droplet Size	0.05 ml per drop (error ≤ ±0.005 ml)

Built with Strong, Clear Specifications

Labs choose our product because it is reliable. We make it from 3.3 borosilicate glass. This material has over 80% silica. It has a low expansion rate. It can handle high heat up to 300°C and sudden temperature changes of 150°C without breaking. This means lab workers can work faster without worry. Before shipping, we check every dropper with three tests: water pressure, high heat resistance, and a visual check. Our pass rate is over 99.8%. When you get this large glass dropper, you get a product we have carefully checked.

Simple Service and a Strong Promise

This large glass dropper has no scale marks. This design helps you focus on the transfer, not on reading lines. It is easy to clean and can handle 121°C high-pressure sterilization for 30 minutes without any change in shape. One dropper can last a long time, which helps lower your costs. We pack them in a sturdy box with foam padding, 100 pieces per box, to keep them safe during shipping. We offer a three-year warranty. If any product arrives damaged, we will help you fix the problem quickly.

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