It is engineered for safe and secure waste disposal in laboratory environments. It features a freely movable PTFE insert that ensures reliable sealing and connection. The cap includes two UNF1/4" fittings suitable for capillaries with outer diameters of 1.6, 2.2, and 3.2 mm, one GL14 thread for an optional b.safe exhaust air filter (filter not included), and one NPT1/8" hose olive compatible with tubing having inner diameters of 5.5 to 8 mm. Constructed from durable PE with a PTFE insert, it guarantees chemical resistance and long-term reliability. Ideal for chromatography and solvent waste applications, this cap enhances safety and efficiency in solvent waste management systems.