Airmaxxx 5 gallon steel air tank, dual 480 black air compressor & wiring kit. Dual compressor wiring kit. 2 – 3/8″ leader hoses, 22″ long. 1 – airmaxxx 5 gallon 9 port steel air tank, black. 2 – 40 amp premium relay. 1 – 150 psi (on) / 180 psi (off) pressure switch 2 – 3/8npt check valves.