This 1/4" male NPT air compressor tank drain valve—commonly referred to as a petcock—is a reliable solution for releasing trapped moisture from your air tank. Constructed from solid brass for long-term durability and corrosion resistance, this valve features a knurled twist grip for easy manual operation and an internal sealing surface designed to prevent leaks and ensure smooth closure.

With a 200 PSI working pressure rating, it's built to handle standard shop air systems. The 1/4" NPT threads measure approximately 1/2" in diameter and can be installed using a 9/16" wrench. This valve is ideal for use on air compressor tanks and other pneumatic equipment requiring regular moisture drainage.

Specifications:

• Thread Size: 1/4" Male NPT (measures approx. 1/2" with tape)
• Material: Solid Brass
• Max Working Pressure: 200 PSI
• Grip: Knurled twist style for easy opening and closing
• O'Ring Sealed
• Wrench Size: 9/16"
• Length: 1-1/4" when open, 1-1/8" when closed
• Use: Commonly used as a tank drain on air compressors