It is designed for secure and efficient solvent handling in laboratory environments. Manufactured from high-quality PPS, this cap features a freely movable PTFE insert and durable PFA fittings, ensuring excellent chemical resistance and long-lasting performance. It accommodates four capillary connections with integrated stopcocks, each designed for 3.2 mm OD capillary tubing, and includes a b.safe air valve with a service life indicator for enhanced safety. An additional capillary connector is located on the bottom side of the lid to expand connectivity options.