1/4" male npt unloader assist valve.

Air compressor auxiliary unloader also known as a unloader assist. This valve has 1/4" male NPT pipe threads. These small valves are usually used directly in the air compressor discharge line for an additional unloading aid for starting compressors in cold weather or low-voltage situations. This valve is also available with 1/8" threads, which can be found in our other items.

Specifications:

• Thread size: 1/4" male NPT (Measure around 1/2" with ruler)
• Construction: solid brass throughout with stainless spring & viton O-ring