Koolance Drain Valve 10mm (3/8 ID - 1/2 OD) VLV-10TSPL

Inline drain valve to expedite coolant evacuation without turning your unit upside-down. Nickel-plated brass.

To use, simply install the valve on a 10mm (3/8") line near the bottom of your setup. When you need to empty the system, place a 1-Liter container below the valve and unscrew it. Next, open the top Koolance reservoir refill plug on your cooling system.