This listing is for a brand new (MADE IN THE USA) air compressor manifold valve with relief. This valve has 1/2" male NPT threads that screw into the tank (1/2" male threads measure about 3/4" in diameter). This valve is a great replacement option for a damaged or worn-out valve. This will also work great if you're building an air compressor or fixing one and the tank has minimal hook-ups.

This valve is equipped with:

- 1/4" Female NPT Port for a Pressure Gauge.
- 1/4" Female NPT Port for an Air Hose or Coupler Connection.
- 1/4" Male NPT thread on the top for a pressure switch control valve. 
(Note:1/4" NPT pipe measures about 1/2" in diameter)

Also features a built-in 135 PSI Relief Valve (also known as a pop off) (Note: this valve is commonly used to replace an old style aluminum manifold that was similar, these old style manifolds had a valve that slides side to side to shut the air off and turn the air on which had a green and red cap on either end.)