This is a replacement Needle Valve that works with your PSI Gauge to control and adjust PSI output.
Please let us know below if you need a length of return tubing with your Needle Valve. This is about 18" of 1/4" tubing that goes from the Needle Valve, back into the tank.
See red arrow in 2nd image that shows this piece of tubing.
The Tee Fitting allows you to branch off into two different directions from one section of tubing.
All of our fittings are nickel plated, which provide years of non-tarnishing luster. These are quick fit designed whereas the tubing simply pushes into the fitting until the internal "teeth" grab it and lock it into place. To release the tubing, simply push in the collar surrounding the tubing to release the "teeth" and pull the tubing out.