Amazon.com : General Pump Triplex Pressure Washer Pump - 3045 PSI, 4.0 GPM, Electric Flange, Direct Drive, Model Number EP1812E17 : Patio, Lawn & Garden
Amazon.com: Annovi Reverberi AR Gymatic 3/B Unloader & by-Pass RR, XM, RK Series Pumps by The ROP Shop
Amazon.com: Comet Pump Pressure Washer Pump - 4000 PSI, 3.5 GPM, Direct Drive, Gas, Model Number ZWDK3540G : Patio, Lawn & Garden