Ideal for use as a drain valve, this XSPC Ball Valve has G1/4â€ ports on each side. Easily incorporate this valve into your custom water loop to make draining it a much easier task. It is recommended to replace the coolant at least yearly to prevent bacteria from building up in the loop and because the coolant becomes less effective over time. Without a drain valve, this can become a messy operation, and it is very possible to get coolant on your expensive components from that if youâ€™re not careful. Save yourself the trouble by having this in your system from the get-go. With this drain valve, you know exactly where the coolant will come out of every time.