Key Features
- Calibrated Glass Pipette for Accurate Measurement
- Graduation marks allow precise and repeatable dosing
- Designed for 2 oz PET Boston Bottles (20-410)
- Compatible with standard PET containers and 20-410 neck finish

Droppers · 20-410
This 20mm 20-410 black calibrated glass dropper is designed for 2 oz PET Boston round bottles, providing a precise and reliable liquid dispensing solution for a wide range of applications. As a professional graduated glass dropper supplier, we offer stable bulk production and consistent quality, ensuring compatibility with indus
Factory Supply
For dropper cap sourcing, buyers usually need stable neck compatibility, smooth bulb rebound, clean glass pipettes, and repeatable dosing performance across bulk orders. This 20mm 20-410 black calibrated glass dropper for 2 oz pet bottles is listed with 20-410 details and 2 oz PET Boston round bottles so purchasing teams can check fit before requesting samples. Shunyu Packaging can coordinate Polypropylene (PP), Black, decoration work, sample confirmation, and production packing for overseas packaging projects.