One new 3/4" compression x 1/2" NPT in-tank air compressor check valve. This style of check valve is usually screwed directly into the air tank, then the main line coming off the compressor pump is connected to it. This valve prevents back flow, which is tank pressure going back to the pump when the compressor is shut off. This valve comes equipped with a 1/8" female NPT port on the side of it. This port is typically used for an unloader line. If an unloader line is not needed with your application it can just be plugged. This is a top quality valve that is made in the USA!

Specifications:

• Total Valve Length: 2-3/4"
• Tank Threads: 1/2" Male NPT
• Compressor Line Input Threads: 3/4" Compression
• Unloader Line: 1/8" Female NPT
• Made in the USA