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Key Features

  • Designed for use with a 4 GPM pressure washer and the house washing chemical Spray and Forget
  • Projects foam up to 30 feet
  • Creates a 9:1 dilution ratio for maintenance applications (see SF-5 for 5:1 dilution ratios)
  • Applies chemical quickly and consistently
  • Industrial-strength, all stainless steel design ensures durability and reliable performance with minimal maintenance
  • Ideal for building maintenance contractors, and also great for homeowners and community property management associations
  • Any of our pressure washer equipment can be used to apply roof washing chemicals, but the SF series of systems was designed and tested to ensure optimal dilution ratios and foam throw distance using Spray and Forget and a 4 GPM pressure washer


  • Zero degree nozzle allows the user to apply Spray and Forget to a roof from the ground or ladder instead of walking on the roof
  • Fan pattern nozzle allows for fast close-range application to siding, decks, and more
  • Eliminates the need to carry chemicals because the injector is installed at the pressure washer (draws chemical out of any sized container)
  • The airless foam wand projects wet, clinging foam which increases chemical contact time and effectiveness
  • Foam provides visual confirmation of coverage and reduces over-application
  • Foam impacts at a lower pressure than spray, allowing a pressure washer to be used on more delicate surfaces
  • Your pressure washer is protected because no chemical passes through the pump


  • Quick connect machined stainless steel injector body with stainless steel 3/8″ quick disconnect plug and socket
  • Stainless steel chemical check valve
  • 6′ chemical suction tube and strainer
  • Machined stainless steel airless foam wand with 1/4″ quick disconnect plug
  • Zero degree and fan nozzles for the airless foam wand
  • Installation and operation instructions

5:1 Dilution Option

  • Expand an existing SF-9 Kit:  Use the optional A-40 Airless Foam Wand (969402) instead of the standard foam wand that is included with the standard SF-9 Kit. Switch ratios by changing the foam wand; no need to adjust the chemical injector. Foam throw distance decreases when using the A-40 Airless Foam Wand.
  • New unit purchase: Purchase the SF-5 Kit if ONLY a 5:1 dilution ratio is desired.
Weight 5 lbs

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