Gas Pressure Washer - Cold Water - 4200 PSI - 4 GPM - AAA Pump - Honda GX390. Gas Engine - AAA Triplex Plunger Pump - Cold Water Operation - Downstream Chemical Injection - 4,200 PSI - 4 GPM - 50 ft Hose. Engine provides an easy start, smooth, and high output operation. Surface Cleaner Min GPM: 3. Surface Cleaner Max GPM: 8.Surface Cleaner PSI: 4,500. Pressure Washer Dimensions (L x W x H). 27" x 23" x 28. Surface Cleaner Dimensions (L x W x H): 20" x 20" x 70. The item "Gas Pressure & Surface Washer Cold Water 4200 PSI 4 GPM AAA Pump Honda" is in sale since Wednesday, February 19, 2020. This item is in the category "Business & Industrial\Cleaning & Janitorial Supplies\Pressure Washers, Parts & Accessories\Pressure Washer Parts & Accessories\Other Pressure Washer Parts & Accessories". The seller is "pacifictundra" and is located in CA, MO, & VT. This item can be shipped worldwide.