20-400 Black Phenolic Cap with PolyCone Liner

20/400 mm CT (continuous thread) Black Ribbed PolyCone Lined Phenolic Cap. These caps are designed to form an exceptionally tight seal because it molds itself around the sealing area of the finish on the glass bottle. The PolyCone liner is made of oil-resistant plastic, offering a superior chemical barrier. Phenolic caps are commonly used for oils, essential oils, solvents, and liquids that require more care in storage or that could be caustic to your average lid.

This cap fits any of the containers under the Product Accessories below. Jars are sold separately by case quantity. Lids are sold by the piece or case. Please scroll down to the From the Blog section to learn more about our Amber Bottles, Lids & Droppers.