It is designed for secure solvent waste disposal in laboratories utilizing Nalgene containers. Featuring four PFA fittings compatible with 1.6, 2.3, and 3.2 mm OD tubing and one leak-proof olive for 6.4 mm ID tubing, this cap ensures safe and efficient waste management. Constructed from high-quality PTFE, it offers exceptional chemical resistance, making it ideal for handling aggressive solvents. The cap includes a connection for an exhaust filter, facilitating safe pressure equalization and minimizing solvent vapors in the workspace.