Buyers Products 4-Way, 2-Position Solenoid Air Valve Controls The Air Flow Required For Precise Operation In Many Air Cylinder Applications. It Allows You To Use Or Activate A Pneumatic System Remotely With An Easy-To-Install Electronic Switch. It Has Five Standard 1/4 In. Npt Ports For Adequate Air Flow. The Rugged 12V Coil Comes Complete With 2 In. Flying Leads. While The Valve Is A Standard 4-Way, It Can Be Easily Converted To 3-Way Operation By Installing Two Pipe Plugs.