General Pump / Interpump K1 (ZK1 GP) flow activated unloader valve. Easy to manage hose, no pressure trapped in lines.
3600psi Maximum Rated Pressure
1/4" gauge port
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.
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