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Prices may varyThis product ranks #13 of 21 in Pressure Washer.Three above it ↓
Last reviewed June 21, 2026
TL;DR Rated 1900 PSI / 1.24 GPM (2,356 cleaning units at working spec; the 2300 PSI / 1.76 GPM headline figures are max-peak values, not simultaneous output). Motor type is classified as universal/brushed per pressurewasherdb.com; manufacturer does not claim induction. Certification status is a conformance declaration (UL 1776 / CSA C22.2 No.68 cited in manual) with no independently confirmed listing number. Foam cannon attachment depends on the gun outlet fitting; rated GPM of 1.24 is borderline adequate for foam generation. Highly rated on Amazon and well-reviewed by a large owner base.
The Westinghouse ePX3100 is a corded electric pressure washer rated at 1900 PSI / 1.24 GPM, the practical working output that matters for car washing. The headline spec (2300 PSI / 1.76 GPM) is a max-peak figure achievable only at opposite ends of the pressure curve, not simultaneously. At rated output, cleaning units come to 2,356, inside the 1,400-2,400 CU car-washing range. No community-measured PSI/GPM meter readings were found in available sources, so cleaning performance is scored provisionally based on rated spec and conservative motor-type adjustment. Motor type is listed as brushed/universal by pressurewasherdb.com; the manufacturer cites 13A amperage without claiming induction. The manual states conformance to UL 1776 and CSA C22.2 No.68, but an independent listing number was not confirmed in public databases as of May 2026. Foam cannon compatibility depends on the gun outlet fitting: the hose uses an M22 connection, but the Westinghouse foam cannon accessory uses a 1/4" connector, suggesting the gun outlet may already be 1/4" QC. At 1.24 GPM, foam generation is functional but not abundant. The 25-ft nylon braided hose reaches all four panels of a standard vehicle, and the Total Stop System auto-shutoff protects the pump during foam-soak idle periods.
The ePX3100 fits the occasional car washer (once or twice a month) who wants a compact, lightweight unit (19 lbs) with enough output for a regularly washed daily driver. The anti-tipping wheeled base, 35-ft GFCI cord, and onboard soap tank add convenience at this price point. Skip it if foam cannon performance is a top priority: GPM of 1.24 is borderline, and until the gun outlet fitting is confirmed compatible with your specific foam cannon, an adapter purchase may be needed. Also skip it for high-frequency or multi-use work: a universal-motor unit is not built for sustained heavy-duty sessions year-round. A confirmed induction-motor unit better suits intensive or year-round use.
The ePX3100 manual cites conformance to UL Standard 1776 and CSA C22.2 No.68, which is a manufacturer conformance declaration. An independent NRTL listing number was not confirmed in the UL Product iQ or ETL certification directories as of May 2026. No active CPSC recall was found for this model. The unit is corded electric with a GFCI plug, appropriate for wet outdoor use. Dispose of at end of life via a municipal e-waste program (Best Buy drop-off, municipal hazardous waste event); there is no lithium battery to manage separately. The ePX3100 is an electric-only model; Westinghouse also sells gas-powered pressure washers, which are not covered by this review.
The ePX3100 has two sets of specs. The headline numbers (2300 PSI / 1.76 GPM) are maximum-peak figures that are not achievable simultaneously (peak PSI is at near-zero flow; peak GPM is at near-zero pressure). The rated working spec is 1900 PSI at 1.24 GPM, which is the output the unit delivers at practical car-washing settings. Cleaning units at rated output: 1900 x 1.24 = 2,356. No independent community meter measurement was found in available sources as of June 2026.
Foam cannons attach to the trigger gun's outlet fitting, not the hose. The ePX3100 uses an M22 fitting on the hose-to-gun connection, but the gun outlet may be a standard 1/4" quick-connect (the Westinghouse foam cannon accessory uses a 1/4" connector, suggesting this path). Rated GPM of 1.24 is in the borderline-adequate range for foam cannons (at the 1.2 GPM threshold) so foam will be serviceable but not as thick and clingy as with a higher-GPM unit. Confirm the gun outlet fitting before purchasing an aftermarket foam cannon.
The product manual states it 'conforms to UL Standard 1776 and is certified to CSA Standard C22.2 No.68,' which is a conformance declaration. An independent listing number verifiable in the UL Product iQ database or ETL certification directory was not confirmed as of May 2026. This is a stronger assurance than CE-only (EU self-declaration), but falls short of a fully confirmed NRTL listing. Check productiq.ulprospector.com for model 'ePX3100' if certification status is a deciding factor.
No active CPSC recall was found for the Westinghouse ePX3100 as of May 2026. The CPSC recall database at cpsc.gov/Recalls is the authoritative source. Verify there for the most current status before purchase.
The manufacturer lists motor amperage (13A) but does not specify induction vs. universal/brush motor. The community database pressurewasherdb.com classifies it as a brushed/universal motor. No independent manufacturer teardown or spec sheet confirmation of an induction motor was found. Motor type affects longevity: universal motors are typically rated for roughly 100-200 hours of use vs. 500+ hours for induction motors, which matters if you wash frequently or use the unit for tasks beyond car washing.
The Amazon listing for Westinghouse ePX3100 Electric Pressure Washer carries a California Prop 65 warning. California requires this warning on a very wide range of manufactured goods — including electronics with wiring, solder joints, or plastic/metal housings — whenever trace exposure to any of roughly 900 listed substances (commonly phthalates or heavy metals) is possible, regardless of whether the specific product poses a meaningful health risk. As a passive electronics product, Westinghouse ePX3100 Electric Pressure Washer has no Safety Data Sheet, so there's no chemistry breakdown to translate beyond that.
Marketing copy from Westinghouse, via Amazon. Not editorial.
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