The 200-100−OS is a slide−in modular compressed air foam unit designed and constructed to discharge water, foam solution or compressed air foam. To further enhance the 200-100-OS, the Waterous ONE STEP™ CAFSystem is configured into the system to provide continuous, homogenous foam every time the system is used.


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  • 200-100-OS
  • Digital Control Panel
  • Compact Foam Generators
200-100-OS FLOW
GPM 200
l/min 800
l/sec 13
SCFM 100
M3/min 2.8
  PSI Bar kPa MPa
Water 150 10 1000 1.0
Air  100  7  700  .7


  • Deutz 74 HP (55 kW) diesel-fueled engine
  • Waterous CPD-2 Pump
  • Waterous ONESTEP CAFSystem Two 1-1/2" Compact Foam Generators ONE STEP™ CAFSystem is the pre-set flow rate and pre-set pressure for water and air. The operator does not have to adjust flows and pressures during operation.
  • 7" Digital Control System
  • One button engages fire pump, foam proportioner and CAFSystem
  • Easily select Wet or Dry Foam
  • GHH Rand 100 sCFM (2.83 m3/min) compressor
  • Stainless Steel Frame
  • Aquis 1.5 Foam Proportioner


Specification Sheets


Sales/Application/Service Help

Industry-leading sales and support.

When you purchase Waterous equipment, not only do you get quality products, you get quality service. Our expert service technicians are the best in the business and they are always happy to answer any service questions you might have. The numbers for our service and training specialists are listed below for your convenience. If you have a general service question please call our main number and our staff will kindly direct you to the appropriate department.

Sales/Applications Assistance

Phone: 651-450-5234 (Press 3)


Service Assistance
Phone: 651-450-5200
Fax: 800-488-1228


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