Air compressor check valve. 3/8" Comp x 1/2" MPT with 1/8" FPT side port.  The check valve is a one-way valve that prevents air from back-feeding from the air tank. If your unit has a hard time restarting when trying to cycle or your pressure switch...

Replace this air compressor drain valve if leaking or will not work. Prevent rust from ruining your tank by draining your tank daily. Keep an extra around for a spare. This valve is designed for bubble-tight sealing for small air compressor tanks...

Old Part Numbers: 31551/4" MPT to 1/8" FPT bushing adapter. If you need a 1/4" MPT fitting, but the part you have is only 1/8" MPT, then use this bushing adapter.

Old Part Numbers: 1/4XHEXNIPPLE BR, 1/4XHEXNIPPLE STBrass 1/4" male NPT x 1.5" hex pipe nipple for air compressors.

1/2" - 14 x 1/4".

Air Compressor Pressure Switch, 120/150 PSI. Replace the pressure switch if the compressor no longer cuts in or cuts out at the designated pressure (PSI), if the unit doesn't turn on or off, or if there is an obvious air leak from the contacts or...

Old Part Numbers: ST073919AV, WL012000AV, WL012300AVFilter - All plastic, 1/2" MPT. Uses the 04 element, 2" diameter. Order extra for a backup. Replace this often to keep your pump from damage (especially in dusty environments).