Koolance QDC (High Flow) No-Spill Shutoff Female, Koolance 13mm (1/2") ID quick-disconnect shutoff valve male pair with L-bracket. Nozzles feature hose barbs on the inside and VL3N male fittings on the outside (for connection with female VL3N). The quick-disconnects enable the convenient connection and disconnection of external devices such as a Koolance Exos. The nozzles are nickel-plated brass. NOTE: Installing this product into a PCI slot can require bending or filing of the surrounding metal