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Best Gas Pressure Washers: Westinghouse, Champion & WEN (2026)

We compare 11 gas pressure washers from Westinghouse, Champion and WEN. Every figure comes from the maker's product page: pressure (PSI), flow (GPM), hose length, pump type, engine, weight and CARB status. Cleaning units (PSI × GPM) are computed by us and labelled. A figure the maker doesn't publish shows as "Not listed" and scores as the weakest published value in the category. We don't test washers or use prices or reviews.

Updated 2026-11-1211 products compared6 scored criteriaHow this ranking works

Affiliate disclosure: We earn a commission if you buy through links on this page, at no extra cost to you. It never affects our rankings, which come from the published scoring formula. As an Amazon Associate I earn from qualifying purchases. Learn more.

Top pick

Westinghouse WPX4400

Score 9.5/10 · Check price

Why it wins: Most pressure and flow here: 4,400 PSI at 4.2 GPM. Top pressure in this comparison (4400 PSI). Top flow in this comparison (4.2 GPM).

Also great: Westinghouse WPX3800 (6.6) · Westinghouse WPX3600 (4.7)

9.5/10
Check price at Amazon See pros, cons & specs

Side-by-side comparison

Swipe sideways on mobile. Green marks the best figure in each column.

Product Score PressureFlowCleaning units (computed)High-pressure hose length Best for Price Buy
1Westinghouse WPX4400
9.5/10
4400 PSI4.2 GPM18480 CU50 ft Most pressure and flow here: 4,400 PSI at 4.2 GPM Check price View deal
2Westinghouse WPX3800
6.6/10
3800 PSI3.6 GPM13680 CU35 ft 3,800 PSI at 3.6 GPM with triplex pump Check price View deal
3Westinghouse WPX3600
4.7/10
3600 PSI2.7 GPM9720 CU35 ft 3,600 PSI triplex with 35 ft hose Check price View deal
4Champion PRO 3500 PSI Pressure Washer (100787)
4.6/10
3500 PSI2.5 GPM8750 CU50 ft Honda-powered triplex with 50 ft hose, CARB compliant Check price View deal
5WEN PW224G
2.5/10
3400 PSI2.7 GPM9180 CU25 ft 3,400 PSI at 2.7 GPM with 223cc engine Check price View deal
6Champion 3200 PSI Pressure Washer (100578)
2.1/10
3200 PSI2.5 GPM8000 CU25 ft 3,200 PSI at 2.5 GPM, 57 lb Check price View deal
7Champion 3000 PSI Pressure Washer (201425)
1.6/10
3000 PSI2.5 GPM7500 CU25 ft 3,000 PSI at 2.5 GPM Check price View deal
8Champion 3000 PSI Pressure Washer (100579)
1.4/10
3000 PSI2.3 GPM6900 CU25 ft Honda-powered, CARB compliant, 51 lb Check price View deal
9Champion 3100 PSI Pressure Washer (100780)
1.4/10
3100 PSI2.2 GPM6820 CU25 ft 3,100 PSI with 224cc engine Check price View deal
10Westinghouse WPX3000
1.4/10
3000 PSI2.3 GPM6900 CU25 ft Lightest here: 50.7 lb Check price View deal
11Champion 2800 PSI Pressure Washer (100778)
0.5/10
2800 PSI2.1 GPM5880 CU25 ft 2,800 PSI at 2.1 GPM Check price View deal

"Not listed" means the manufacturer page we used does not publish that figure. Prices show "Check price" until a retailer feed provides a current price.

Every gas pressure washer, ranked

#1 · Top pick

Westinghouse WPX4400

Best for: Most pressure and flow here: 4,400 PSI at 4.2 GPM

9.5/10

What we like

  • Top pressure in this comparison (4400 PSI)
  • Top flow in this comparison (4.2 GPM)
  • Top cleaning units (computed) in this comparison (18480 CU)
  • Top high-pressure hose length in this comparison (50 ft)

Watch out for

  • Highest weight in this comparison (142 lb)

Score breakdown

Pressure 30%
Flow 25%
Cleaning units (computed) 20%
High-pressure hose length 10%
Triplex pump 10%
Weight 5%
Pressure4400 PSI
Flow4.2 GPM
Cleaning units (computed)18480 CU
High-pressure hose length50 ft
Triplex pumpYes
Weight142 lb
Cleaning units basiscomputed: 4,400 PSI × 4.2 GPM
Pump3-Piston Triplex
Engine420cc
CARBNo (per maker)
PriceCheck price
Check price at Amazon Full specs
Specs source:
#2

Westinghouse WPX3800

Best for: 3,800 PSI at 3.6 GPM with triplex pump

6.6/10

What we like

    Watch out for

      Score breakdown

      Pressure 30%
      Flow 25%
      Cleaning units (computed) 20%
      High-pressure hose length 10%
      Triplex pump 10%
      Weight 5%
      Pressure3800 PSI
      Flow3.6 GPM
      Cleaning units (computed)13680 CU
      High-pressure hose length35 ft
      Triplex pumpYes
      Weight91 lb
      Cleaning units basiscomputed: 3,800 PSI × 3.6 GPM
      Pump3-Piston Triplex
      Engine274cc
      CARBNo (per maker)
      PriceCheck price
      Check price at Amazon Full specs
      Specs source:
      #3

      Westinghouse WPX3600

      Best for: 3,600 PSI triplex with 35 ft hose

      4.7/10

      What we like

        Watch out for

          Score breakdown

          Pressure 30%
          Flow 25%
          Cleaning units (computed) 20%
          High-pressure hose length 10%
          Triplex pump 10%
          Weight 5%
          Pressure3600 PSI
          Flow2.7 GPM
          Cleaning units (computed)9720 CU
          High-pressure hose length35 ft
          Triplex pumpYes
          Weight79 lb
          Cleaning units basiscomputed: 3,600 PSI × 2.7 GPM
          Pump3-Piston Triplex
          Engine212cc
          CARBNo (per maker)
          PriceCheck price
          Check price at Amazon Full specs
          Specs source:
          #4

          Champion PRO 3500 PSI Pressure Washer (100787)

          Best for: Honda-powered triplex with 50 ft hose, CARB compliant

          4.6/10

          What we like

          • Top high-pressure hose length in this comparison (50 ft)

          Watch out for

            Score breakdown

            Pressure 30%
            Flow 25%
            Cleaning units (computed) 20%
            High-pressure hose length 10%
            Triplex pump 10%
            Weight 5%
            Pressure3500 PSI
            Flow2.5 GPM
            Cleaning units (computed)8750 CU
            High-pressure hose length50 ft
            Triplex pumpYes
            Weight102 lb
            Cleaning units basiscomputed: 3,500 PSI × 2.5 GPM
            PumpTriplex
            EngineHonda 196cc
            CARBYes
            EPAYes
            PriceCheck price
            Check price at Amazon Full specs
            Specs source:
            #5

            WEN PW224G

            Best for: 3,400 PSI at 2.7 GPM with 223cc engine

            2.5/10

            What we like

              Watch out for

              • Weight not published by WEN

              Score breakdown

              Pressure 30%
              Flow 25%
              Cleaning units (computed) 20%
              High-pressure hose length 10%
              Triplex pump 10%
              Weight * 5%

              * Not published by the manufacturer; scored at the lowest published value in this category, so an unpublished figure never outranks a published one.

              Pressure3400 PSI
              Flow2.7 GPM
              Cleaning units (computed)9180 CU
              High-pressure hose length25 ft
              Triplex pumpNo
              WeightNot listed
              Cleaning units basiscomputed: 3,400 PSI × 2.7 GPM
              WeightNot published by the maker
              PumpAxial
              Engine223cc
              CARBNot published by the maker
              PriceCheck price
              Check price at Amazon Full specs
              Specs source:
              #6

              Champion 3200 PSI Pressure Washer (100578)

              Best for: 3,200 PSI at 2.5 GPM, 57 lb

              2.1/10

              What we like

                Watch out for

                  Score breakdown

                  Pressure 30%
                  Flow 25%
                  Cleaning units (computed) 20%
                  High-pressure hose length 10%
                  Triplex pump 10%
                  Weight 5%
                  Pressure3200 PSI
                  Flow2.5 GPM
                  Cleaning units (computed)8000 CU
                  High-pressure hose length25 ft
                  Triplex pumpNo
                  Weight57 lb
                  Cleaning units basiscomputed: 3,200 PSI × 2.5 GPM
                  PumpAxial
                  EngineChampion 224cc
                  CARBNot published by the maker
                  EPAYes
                  PriceCheck price
                  Check price at Amazon Full specs
                  Specs source:
                  #7

                  Champion 3000 PSI Pressure Washer (201425)

                  Best for: 3,000 PSI at 2.5 GPM

                  1.6/10

                  What we like

                    Watch out for

                      Score breakdown

                      Pressure 30%
                      Flow 25%
                      Cleaning units (computed) 20%
                      High-pressure hose length 10%
                      Triplex pump 10%
                      Weight 5%
                      Pressure3000 PSI
                      Flow2.5 GPM
                      Cleaning units (computed)7500 CU
                      High-pressure hose length25 ft
                      Triplex pumpNo
                      Weight64 lb
                      Cleaning units basiscomputed: 3,000 PSI × 2.5 GPM
                      PumpAxial
                      EngineChampion 196cc
                      CARBNot published by the maker
                      EPAYes
                      PriceCheck price
                      Check price at Amazon Full specs
                      Specs source:
                      #8

                      Champion 3000 PSI Pressure Washer (100579)

                      Best for: Honda-powered, CARB compliant, 51 lb

                      1.4/10

                      What we like

                        Watch out for

                          Score breakdown

                          Pressure 30%
                          Flow 25%
                          Cleaning units (computed) 20%
                          High-pressure hose length 10%
                          Triplex pump 10%
                          Weight 5%
                          Pressure3000 PSI
                          Flow2.3 GPM
                          Cleaning units (computed)6900 CU
                          High-pressure hose length25 ft
                          Triplex pumpNo
                          Weight51 lb
                          Cleaning units basiscomputed: 3,000 PSI × 2.3 GPM
                          PumpAxial
                          EngineHonda 160cc
                          CARBYes
                          EPAYes
                          PriceCheck price
                          Check price at Amazon Full specs
                          Specs source:
                          #9

                          Champion 3100 PSI Pressure Washer (100780)

                          Best for: 3,100 PSI with 224cc engine

                          1.4/10

                          What we like

                            Watch out for

                              Score breakdown

                              Pressure 30%
                              Flow 25%
                              Cleaning units (computed) 20%
                              High-pressure hose length 10%
                              Triplex pump 10%
                              Weight 5%
                              Pressure3100 PSI
                              Flow2.2 GPM
                              Cleaning units (computed)6820 CU
                              High-pressure hose length25 ft
                              Triplex pumpNo
                              Weight69 lb
                              Cleaning units basiscomputed: 3,100 PSI × 2.2 GPM
                              PumpAxial
                              EngineChampion 224cc
                              CARBNot published by the maker
                              EPAYes
                              PriceCheck price
                              Check price at Amazon Full specs
                              Specs source:
                              #10

                              Westinghouse WPX3000

                              Best for: Lightest here: 50.7 lb

                              1.4/10

                              What we like

                              • Lowest weight in this comparison (50.7 lb)

                              Watch out for

                                Score breakdown

                                Pressure 30%
                                Flow 25%
                                Cleaning units (computed) 20%
                                High-pressure hose length 10%
                                Triplex pump 10%
                                Weight 5%
                                Pressure3000 PSI
                                Flow2.3 GPM
                                Cleaning units (computed)6900 CU
                                High-pressure hose length25 ft
                                Triplex pumpNo
                                Weight50.7 lb
                                Cleaning units basiscomputed: 3,000 PSI × 2.3 GPM
                                Pump3-Piston Axial Cam, Aluminum Head
                                Engine212cc
                                CARBNo (per maker)
                                PriceCheck price
                                Check price at Amazon Full specs
                                Specs source:
                                #11

                                Champion 2800 PSI Pressure Washer (100778)

                                Best for: 2,800 PSI at 2.1 GPM

                                0.5/10

                                What we like

                                  Watch out for

                                  • Lowest pressure in this comparison (2800 PSI)
                                  • Lowest flow in this comparison (2.1 GPM)
                                  • Lowest cleaning units (computed) in this comparison (5880 CU)

                                  Score breakdown

                                  Pressure 30%
                                  Flow 25%
                                  Cleaning units (computed) 20%
                                  High-pressure hose length 10%
                                  Triplex pump 10%
                                  Weight 5%
                                  Pressure2800 PSI
                                  Flow2.1 GPM
                                  Cleaning units (computed)5880 CU
                                  High-pressure hose length25 ft
                                  Triplex pumpNo
                                  Weight67.2 lb
                                  Cleaning units basiscomputed: 2,800 PSI × 2.1 GPM
                                  PumpAxial
                                  EngineChampion 196cc
                                  CARBNot published by the maker
                                  EPAYes
                                  PriceCheck price
                                  Check price at Amazon Full specs
                                  Specs source:

                                  Buying guide: how to choose the right gas pressure washer

                                  PSI, GPM and cleaning units

                                  PSI is pressure; GPM is flow. Cleaning units (PSI × GPM) are a rough measure of cleaning speed. Gas washers here range from 5,880 to 18,480 computed cleaning units.

                                  Axial vs triplex pumps

                                  Axial cam pumps are light and cheap. Triplex (plunger) pumps run cooler, can usually be rebuilt, and suit frequent heavy use.

                                  CARB and EPA

                                  California and some other states require CARB-compliant small engines. Westinghouse lists its gas washers here as not CARB compliant; Champion lists CARB compliance for its Honda-powered 100787 and 100579.

                                  Pressure washer safety (not legal advice)

                                  A pressure washer jet can cut skin and inject water or chemicals under it; get medical help for any injection injury, even if it looks small. Never point the wand at people or pets, wear eye protection and closed shoes, and start with a wide (25° or 40°) tip. Gas washers produce carbon monoxide: run them outdoors only, never in a garage. Plug electric washers into a GFCI-protected outlet and keep connections dry. Higher PSI can damage wood, siding, car paint and window seals, so test on a hidden spot first.

                                  How this ranking is calculated

                                  Score = weighted average of normalised specs, out of 10. Full method

                                  PressureThe maker's listed pressure. Scale: 2800 → 4400 PSI.
                                  30%
                                  FlowThe maker's listed water flow. More flow rinses faster. Scale: 2 → 4.2 GPM.
                                  25%
                                  Cleaning units (computed)Computed: listed PSI × listed GPM. Scale: 5800 → 18500 CU.
                                  20%
                                  High-pressure hose lengthLonger hoses mean less moving the unit. Scale: 25 → 50 ft.
                                  10%
                                  Triplex pumpYes when the maker lists a triplex (plunger) pump, which is typically serviceable and longer-lived than an axial cam pump.
                                  10%
                                  WeightThe maker's listed weight. Scale: 145 → 50 lb.
                                  5%

                                  Frequently asked questions

                                  Which brands weren't covered?

                                  We didn't cover Simpson, Kärcher or DeWalt (we didn't fetch them), Generac (its product pages didn't load), Sun Joe (its catalog wasn't readable) or Honda (its site blocked our requests). Ryobi's gas washer pages didn't publish specs we could read, so Ryobi gas models aren't ranked.

                                  Can I run a gas pressure washer in a garage?

                                  No. Gas engines produce carbon monoxide. Run them outdoors only, away from doors, windows and vents.

                                  Why isn't CARB a ranked criterion?

                                  Only two models here list CARB compliance, and it matters only where it's required. It's shown in each product's notes.

                                  Top pick · 9.5/10Westinghouse WPX4400
                                  Check price