JEGS Stage Control II includes a stainless steel 4-port valve, traditional activation switch, indicator light, 4 amp fuse, mounting hardware, and instructions. The heat-treated stainless valve has a heat sink to dissipate heat, four high-flow ports (allowing for the addition of a bleeder screw and brake pressure gauge), waterproof 12-volt coil, and a 150 micron screen to keep out rust and debris that would otherwise impair performance.