It is designed for secure and efficient waste handling in laboratory settings. It features a freely movable PTFE insert and supports connecting capillaries with outer diameters of 1.6 mm, 2.2 mm, or 3.2 mm, as well as hose olives for tubing with inner diameters from 5.5 to 8 mm. The cap includes multiple fittings, UNF 1/4", GL14 (for optional exhaust air filter, sold separately), and NPT 1/8", ensuring compatibility with various laboratory equipment. The polypropylene (PP) funnel incorporates an integrated automatic stopcock, which opens by pushing the grip and closes automatically when the grip is released, allowing precise control of fluid flow and enhanced safety.