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Interpump K1 Flow Activated Soft Unloader 10.8gpm 3600psi

General Pump / Interpump K1 (ZK1 GP) flow activated unloader valve. Easy to manage hose, no pressure trapped in lines.

3600psi Maximum Rated Pressure

  • 10.8 gpm
  • 3/8" Inlet
  • 1/4" gauge port
  • 165° F

Not suited for multi-gun systems


Unloader valves are one of the most important safety devices on a pressure washer system. Failure to install and set the unloader properly could result in a very dangerous situation causing severe damage to the pump and possibly the operator.

Professional installation is required.