Best Walk-Behind Floor Scrubbers 17 in and Up Ranked

9 walk-behind scrubbers with a cleaning path of 17 in or more.

Last updated: November 9, 2026

A 17 to 22 in walk-behind scrubber is sized for warehouses, schools, gyms, supermarkets and other large open floors. The bigger machines carry 10 to 18 gal of recovery and run for hours per charge, but they weigh 130 to 330 lb, and their squeegees are 2 to nearly 3 ft wide, so measure doorways and aisles first.

Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

Full ranking 9

  1. Sunmax RT50 22 in
    #1 of 94.1Full review

    A wide battery scrubber that runs a whole shift on a charge, for warehouses, factories and gyms. It has the longest runtime here.

    Amazon $2,299
    $2,299
    22 in14.5 gal5 h
  2. ARBRIX F450-X 20 in
    #2 of 94.0Full review

    A 20 in lithium scrubber for supermarkets, schools and warehouses that want hours of cordless cleaning without battery maintenance.

    Amazon $2,019
    $2,019
    20 in12 gal4 h
  3. Purilitzs T380 22 in
    #3 of 93.9Full review

    A 22 in battery scrubber with large tanks and several hours of runtime, for warehouses, factories and large retail floors.

    Amazon $2,489
    $2,489
    22 in18.5 gal3 h
  4. Viper AS430C
    #4 of 93.6Full review

    A corded 17 in scrubber for floors near outlets, like kitchens, shops and small warehouses, where nobody wants to manage batteries.

    Amazon $3,015
    $3,015
    17 in13 galCorded
  5. Karhdir RO850 22 in
    #5 of 93.5Full review

    A 22 in battery scrubber with 18.5 gal of recovery, for warehouses and large open floors. Its battery runtime is not published.

    Amazon $2,489
    $2,489
    22 in18.5 gal-
  6. Sunmax RT35
    #6 of 93.4Full review

    A mid-size battery scrubber for schools, offices and retail aisles that need a few hours of cleaning per charge at an import price.

    Amazon $1,999
    $1,999
    17 in9.2 gal2.5 h
  7. Viper AS5160
    #7 of 93.3Full review

    A heavy-duty 20 in battery scrubber built for daily use in schools and warehouses. Its wet batteries need upkeep and its price is the highest here.

    Amazon $5,720
    $5,720
    20 in16 gal-
  8. Karhdir C5 18 in
    #8 of 93.1Full review

    A budget 18 in battery scrubber with big tanks, for small warehouses, gyms and shops. Runtime is not published and the motor warranty is one year.

    Amazon $1,999
    $1,999
    18 in11 gal-
  9. Viper AS4325B
    #9 of 93.0Full review

    A quiet 17 in battery scrubber for offices, hospitals and stores cleaned during open hours. Its tanks are small for the price.

    Amazon $4,838.80
    $4,838.80
    17 in6.6 gal-