We may earn a commission when you buy through our links. Rankings are formula-based and never paid for. As an Amazon Associate I earn from qualifying purchases. Disclosure

Champion 3100 PSI Pressure Washer (100780)

Ranked #9 of 11 in Best Gas Pressure Washers: Westinghouse, Champion & WEN (2026). Here is every spec we scored, where it came from, and how it compares.

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.

#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
      Specs source:

      Champion 3100 PSI Pressure Washer (100780) head-to-head

      Head-to-headChampion 3000 PSI Pressure Washer (201425) vs Champion 3100 PSI Pressure Washer (100780)

      How it compares

      Open the full comparison table

      Westinghouse WPX4400
      9.5/10
      #1 · Most pressure and flow here: 4,400 PSI at 4.2 GPM
      Westinghouse WPX3800
      6.6/10
      #2 · 3,800 PSI at 3.6 GPM with triplex pump
      Westinghouse WPX3600
      4.7/10
      #3 · 3,600 PSI triplex with 35 ft hose
      Champion PRO 3500 PSI Pressure Washer (100787)
      4.6/10
      #4 · Honda-powered triplex with 50 ft hose, CARB compliant
      WEN PW224G
      2.5/10
      #5 · 3,400 PSI at 2.7 GPM with 223cc engine
      Champion 3200 PSI Pressure Washer (100578)
      2.1/10
      #6 · 3,200 PSI at 2.5 GPM, 57 lb
      Champion 3000 PSI Pressure Washer (201425)
      1.6/10
      #7 · 3,000 PSI at 2.5 GPM
      Champion 3000 PSI Pressure Washer (100579)
      1.4/10
      #8 · Honda-powered, CARB compliant, 51 lb
      Westinghouse WPX3000
      1.4/10
      #10 · Lightest here: 50.7 lb
      Champion 2800 PSI Pressure Washer (100778)
      0.5/10
      #11 · 2,800 PSI at 2.1 GPM