Old Part Numbers: ST119301AV, QR1/8" NPT x 1/4" nylon tube. This allows 1/4" nylon tubing to push to fit into this fitting. The 1/8" MPT threads screw into the unloader area of the air compressor check valve.

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...

Sold by the foot. E.g., if you need a 2-ft length of tubing, order qty. 2.

Old Part Numbers: 3168Air compressor pressure switch/manifold pipe plug, 1/4-18 male NPT.

Pressure Switch, 120/150 PSI.  

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 (especially in dusty environments) to keep your pump from damage.