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The highest-rated gas and electric models to blast away dirt on your home, patio, sidewalk and more.

The Karcher Pressure Washer, which has three different nozzle sprays, is 40% off at Amazon.

A simple garden hose might rinse off pollen, mildew, algae and baked-on dirt from months of rain, sun and foot traffic, but it doesn’t actually clean. That’s where a pressure washer comes in — and ...