Here's 4WD Product's suggested plumbing diagram. We followed the company's wiring schematic. The compressor is capable of 150psi max pressure and its 34-horsepower motor draws 40 amps at 150psi and 30 amps at 35psi. It can deliver a continuous 4.0 cfm, yet it only weighs 17 pounds. If fills the three-gallon tank, runs very quietly, and is mounted completely out of sight.