Black Plastic 20-400 Dropper Assembly with 91mm Glass Pipette

This high-quality dropper assembly features a sleek black plastic 20-400 ribbed cap, paired with a durable 91mm straight-tip glass pipette for precise liquid dispensing. Designed for use with 1 oz (30ml) Boston Round bottles and other compatible containers, this dropper is ideal for essential oils, tinctures, serums, and other liquid products requiring controlled application. The 20-400 neck finish ensures a secure, leak-resistant fit.

Key Features:

• Ribbed black polypropylene cap for easy grip

• 20-400 thread size fits standard 1 oz bottles

• 91mm straight-tip glass pipette for accurate dosing

• Ideal for pharmaceuticals, cosmetics, and essential oils