Pressure Washer Pump Power Washer Pump 1″ Shaft Horizontal 4000 PSI 4.4 GPM by | Jul 23, 2026Shaft: 1″ Horizontal | Inlet: 3/4″ FNPT | Outlet: 3/8″ Quick Connect. Adjustable Unloader Valve – Lets you fine-tune pressure for different tasks: max power for concrete, lower settings for cars or decks.
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