Fist Model: For Karcher K2 K3 K4 K5 K6 K7 pressure washer. Applicable to Kaichi K2 K3 K4 K5 K6 K7 high-pressure washer. 1 set of sealing ring. Replace the water seal of the pump, maintain the pressure of the high-pressure cleaner, continue to operate normally, and effectively prevent liquid leakage.
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