This valve is just the thing for switching air/argon on my Primeweld ct520d for switching between plasma cutting and Tig welding. Needed to reverse the handle for clearance, so it's not intuitive which way the valve is open, hence the markings on the box. Left quick release hose is air in. Clear hose on the right is gas in, bottom clear hose goes to the welder, the red hose goes to the gauge on the welder. Used a double male connector to attach the valve to the air dryer, and the setup is sturdy enough to switch the valve one handed.
