It is specifically designed for Schott wide neck bottles, providing a secure and efficient solvent supply solution in laboratory environments. This cap features a single PFA fitting compatible with 1.6 mm, 2.3 mm, and 3.2 mm outer diameter tubing, ensuring versatile connectivity for various laboratory setups. The integrated air valve facilitates pressure equalization, maintaining system integrity during solvent withdrawal. Constructed from high-quality PTFE, it offers exceptional chemical resistance, making it suitable for handling aggressive solvents. The cap includes a change indicator and blind plug for unused ports, enhancing laboratory safety and efficiency.