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Boxxer 423S


Quick Overview

Boxxer 423S W/70 Gal Maxx-Air recovery tank


The HydraMaster Boxxer 423S truck mount machine takes the proven track record of the industry’s top selling truckmount, the HydraMaster Boxxer 421 to an entire new level of reliability, durability, and serviceability. The Boxxer 423S provides more power through increased engine horsepower and improves serviceability by providing easier accessibility to crucial components, including the heat exchanger

The HydraMaster Boxxer 423S has also reduced noise by optimizing airflow with the OPTI-AIR™ flow system through the entire machine which provides more consistent heat performance and makes the truck mount machine quieter in operation. You can clean everything from the filthiest carpet, to the most delicate upholstery fabric, to the grimiest tile or concrete floor

The Boxxer 423S heat control system automatically manages water heating – allowing less water dumping, and gives more consistent temperatures during intermittent wand use; e.g., moving furniture while cleaning. With heated solution of 1000psi, you are ready for just about any cleaning job. The magnetic pump clutch also allows flood extraction jobs without needing fresh water hookup to cool the pump. It is economical to operate: with a compact design; is easier to maintain; and is quieter. Best of all, it comes with a proven track record of profit making performance for your cleaning and restoration company.


  • Subcategory:Slide In
  • Dimensions:24"W x 32"H x 36"D
  • Weight:563 lbs
  • Engine:23 HP Briggs & Stratton V-Twin Vanguard industrial series engine
  • Ignition:Electric key start
  • Vacuum Blower:4005 Dominator™ Tri-Lobe blower, HydraMaster Exclusive Design, 300+ cfm, dual oil bath oil design with sight level windows
  • Pump:4.0gpm plunger pump, 1,000 operating psi, electric clutch control
  • Max Temp:235ºF
  • Chemical System:Stainless steel last-step chemical injection, meter controlled
  • Heating System:Finned tube heat exchanger
  • Recovery Tank: 70 gallon MaxAir™ recovery tank; aluminum, baked on powder coated finish, includes stainless steel filter and filter basket. 36 1/2"L x 10 1/2"W x 31"H, 100 lbs
  • Solution Hose Length:100 ft
  • Vacuum Hose Length:100 ft x 2"
  • Wand Capacity:Dual
  • Fuel Consumption:1.5 gph
  • Uses:Residential, Large Commercial

Additional Information

SKU 8931


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