Koolance (patent-pending) quick disconnect no-spill coupling with automatic shutoff. G 1/4 BSPP threaded female with panel-mount opposite a male "QD3" quick-disconnect. It will only fit a Koolance QD3 female shutoff valve.
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 chrome-plated brass, EPDM o-rings. Maximum operating pressure is 2kgf/cm2 (28.5 psi) @ 25ºC. Maximum operating temperature is 100°C (212°F).