Product information: QD3 Female Quick Disconnect No-Spill Coupling, Compression for 10mm x 16mm (3/8in x 5/8in)Koolance patented quick disconnect no-spill coupling with automatic shutoff. 10mm (3/8") ID, 16mm (5/8") OD female straight connection with compression fitting. It will only fit a Koolance QD3 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. Coolant volume lost upon disconnection will rise with internal pressure higher than 0.5kgf/cm2 (7psi). Fittings are chrome-plated brass.