Product information: QD3 Male Quick Disconnect No-Spill Coupling, Barb for ID 13mm (1/2in)Koolance (patent-pending) quick disconnect no-spill coupling with automatic shutoff. 13mm (1/2in) ID male hose barb with clamp for 16mm (5/8in) OD. 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 nickel-plated brass. Maximum operating pressure is 2kgf/cm2 (28.5 psi) @ 25°C. Maximum operating temperature is 100°C (212°F).