Old Part Numbers: MP218-O, MP2018-OThis is the o-ring seal for each end of the the pump connecting hoses, which connects the two pump heads.

Back-mount pressure gauge, 2" Face, 1/4" MPT.

California Air Tools Regulator Manifold for air compressors. The regulator controls the amount of air in your air compressor hose. Replace this if you're not able to adjust the PSI to your hose or if it leaks or if there are any fractures in the manifold...

2HP Shock Strut

This is the intake valve that installs on the bottom of the valve plate. Replace if broken or corroded.

1/4" Quick Connect for California Air Tools air compressors.