Get your hands on another stainless steel hose that has female ends to attach your spotless water unit to a mechanical dispensing device (read: pressure washer!) of your choice.
Stainless Steel Inlet Hose
Be sure to get an N-1 fitting to fit the end of this hose to your pressure washer inlet. Use the 'fine threaded' end of the N-1 into this hose and the 'coarse threaded' end into the pressure washer inlet.