20-400 Cap, Black Phenolic Screw Cap, White Rub Liner

Ensure a secure closure for your laboratory vials with the DWK Life Sciences LLC 20-400 Black Phenolic Screw Cap. This cap, featuring a white rub liner, provides a tight seal to prevent any leakage or contamination during storage or transportation of samples. The black phenolic material offers durability and chemical resistance, making it suitable for a wide range of lab applications. Compatible with vials requiring a 20-400 thread finish, this screw cap is easy to apply and remove, facilitating efficient sample handling processes. Trust the quality of DWK Life Sciences LLC products to maintain the integrity of your valuable samples in the lab environment.