This 24VDC powered, normally-closed (NC), solenoid valve has push-fit tubing input and outputs designed for standard 1/4? tubing. The electrical connection on this solenoid valve fits the DC24 accessory ports found on the FMM, 1Link. Common uses include safety stops for RODI systems, CO2 systems on calcium reactors, and many other places where you want to control the on/off flow of water, air, or other gasses.