Koolance (patent-pending) quick disconnect no-spill coupling with automatic shutoff. 1/4 NPT (tapered) thread for screwing directly into a component. It will only fit a Koolance QD2 male quick disconnect.

After pulling the ring on the female QDC side, the quick-disconnect fittings will separate. Liquid on both sides will be automatically obstructed with approximately 0.2mL freed. Fittings are nickel-plated brass.