18mm 18-400 White Child Resistant Calibrated Glass Dropper for 1/2 oz Bottles | Graduated CRC Dropper Supplier
Product Overview

This 18mm 18-400 white child resistant calibrated glass dropper is designed for 1/2 oz Boston round bottles, providing a safe, compliant, and precision dosing solution for CBD oil, cannabis extracts, pharmaceuticals, and skincare formulations.

As a professional graduated glass dropper supplier, we offer stable bulk production and consistent quality, ensuring compatibility with industry-standard packaging used in regulated markets.

Equipped with a reliable child-resistant (CRC) closure and graduated measurement markings, this dropper enables accurate and repeatable dosing while helping prevent unintended access. The clean white finish makes it ideal for healthcare, cosmetic, and wellness-focused brands.

Key Features
Child Resistant Closure (CRC) for Safety Compliance
Push-down-and-turn locking mechanism helps prevent access by children
Calibrated Glass Pipette with Graduation Marks
Enables precise, repeatable measurement and dosing
66 mm High-Clarity Glass Pipette
Ensures smooth, controlled, and accurate liquid dispensing
Durable PP Cap Construction
Polypropylene closure provides strong chemical resistance and durability
Compatible with 18-400 Boston Bottles
Designed for standard 1/2 oz Boston round bottles
Clean White Finish for Medical & Cosmetic Positioning
Ideal for brands requiring a professional, clean appearance
Bulk Supply with Reliable Quality Control
Suitable for distributors and brands requiring consistent large-volume supply
Specifications
Neck Finish: 18-400
Size: 18mm
Cap Material: Polypropylene (PP)
Pipette Material: Glass (Calibrated)
Bulb Material: Rubber
Pipette Length: 66 mm
Color: White
Maximum Dispensing Volume: Approx. 0.75 ml (water-based liquid)
Bottle Compatibility: 1/2 oz Boston round bottles
Applications

This white calibrated child resistant glass dropper is widely used for:

CBD oil and cannabis extracts
Essential oils
Pharmaceutical liquids
Skincare and cosmetic serums
Chemical solutions
Important Notes
Graduation Mark Durability
Products containing ethyl alcohol or highly concentrated essential oils may affect or fade printed graduation markings due to their corrosive nature. Compatibility testing is recommended.
Calibration Standard
Graduation marks are based on water-based liquid testing. Actual dispensing volume may vary depending on liquid viscosity and formulation.
Why Choose Us
25+ years of packaging manufacturing experience
Integrated plastic + glass production capabilities
In-house mold development and customization
Stable bulk production with reliable lead times
Trusted supplier for cannabis and CBD packaging
FAQ

Q1: Does this dropper fit standard 18-400 Boston round bottles?
Yes, it is fully compatible with standard 18-400 Boston round bottles.

Q2: Are the graduation markings accurate for all liquids?
They are calibrated using water-based liquids. Oil-based or viscous products may vary slightly.

Q3: Will alcohol or essential oils affect the markings?
Yes, high concentrations may gradually fade the printed graduation marks.

Q4: Do you offer bulk or wholesale pricing?
Yes, we specialize in bulk and wholesale supply. Please contact us for pricing and samples.