2.0 Gal. 150 PSI 12-Volt High-Flow Air Source KitVIAIR 150 PSI Air Source Kits come with a powerful, 30% duty cycle, 280C VIAIR compressor mounted on a 150 PSI rated 2. 0 Gal. air tanks with 5 ports. All Air Source kits come with a pre wired pressure switch (P N 20005 110 150 PSI). The 150 PSI Air Source Kit comes complete with a 1 4 in. NPT brass drains cock, 1 4 in. NPT ASME coded and certified safety valve, 1 2 in. NPT port compression fitting for 3 8 in. airline pre installed. To use, simply