Westinghouse ePX3100 Electric Pressure Washer, 2300 Max PSI 1.76 Max GPM, Onboard Soap Tank, 5-Nozzle Set Review (2026)

Who this pressure washer suits

This washer fits owners who want one machine that handles both car washing and broader outdoor cleaning like patios, fences, and driveways, since its higher 2300 max PSI gives it more headroom for tougher jobs than a car-focused unit. The 5-nozzle set, including wide fan patterns and a dedicated soap applicator tip, means less swapping equipment to switch between rinsing a car and blasting grime off concrete. Its four quick lock wheels and low center of gravity also make it easy to roll around a driveway rather than carrying it by a handle. Owners whose primary use is delicate paint care and who want the simplest possible foam pre-wash may prefer the detachable foam cannon on the sibling ePX3100v model instead, since that version is tuned more specifically around snow-foam washing.

Specs and design explained

The ePX3100 delivers up to 2300 max PSI and 1.76 max GPM at its lowest pressure setting, with 1900 rated PSI and 1.24 rated GPM in normal operation, putting it a step above its ePX3100v sibling on raw pressure. It is compact at about 16.5 inches tall and 19 pounds, and rolls on four quick lock wheels with 360 degree steering, with a low center of gravity that Westinghouse designs for anti-tipping stability. The pro-style steel wand extends to 17.5 inches and uses quick-connect nozzles covering 0, 15, and 25 degree fan patterns plus a turbo tip and a dedicated soap applicator, giving five spray options in total. Water runs through a 25 foot nylon-braided hose, and a 20 ounce onboard detergent tank handles soap application without a separate cannon attachment.

Setup and using the onboard soap tank

Setup follows the same pattern as most electric pressure washers: connect a garden hose, attach the wand, and select a nozzle for the task at hand, with the soap applicator tip pulling detergent from the built-in 20 ounce tank when needed. Because the tank is onboard rather than a separate cannon, there is nothing extra to store or clip on between washing and rinsing, which simplifies the routine compared with managing a detachable foam attachment. The trade-off is that an onboard tank sprays a thinner, more diluted soap mix than a purpose-built foam cannon, so it works better as a quick pre-treatment than a thick clinging foam coat. The Total Stop System pauses the pump automatically between trigger pulls, and the wheeled design makes repositioning around a car or patio straightforward.

How it compares with other pressure washers

Against its own sibling, the Westinghouse ePX3100v, this model trades a detachable foam cannon for a fifth nozzle and higher max pressure, which suits buyers who want more spray versatility over dedicated foam-washing convenience. The Sun Joe SPX3001 ranks above both Westinghouse units in this comparison with dual built-in soap tanks, while the Sun Joe SPX2680-MAX pairs a lower 1600 PSI rating with its own foam cannon and extension wand for a gentler, foam-focused setup. Compared with the Westinghouse WPX3000e, which matches this unit's score with an induction motor and its own 5-nozzle set, the two Westinghouse siblings are close competitors depending on whether a buyer values higher PSI or specific motor type more.

Verdict and who should look elsewhere

For owners who want one wheeled washer that handles car rinsing and heavier outdoor cleaning with a full set of nozzle options, this unit's 2300 PSI headroom and onboard soap tank make it a versatile pick, supporting its score of 8.1 out of 10. Anyone whose main goal is a thick snow-foam pre-wash before hand contact should look at the ePX3100v's detachable cannon instead, and owners who never plan to clean anything besides a car may not need the extra pressure this model offers. For mixed-use outdoor cleaning, though, the wider nozzle set and onboard tank are genuinely convenient.

Frequently asked questions