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20 Gallon Smart Foam Unit


20 gallon air-powered, portable, pre-mix foam unit with a smart foam wand. Configurable with Viton, Kalrez, or Santoprene seals and lid color options.



  • equipped with Smart Technology
    • safer to store and maintain
    • protects user and surroundings from chemical exposure in the event of a fall or accident
    • gives you more control and flexibility
    • easy ON/OFF operation
    • handle and wand are tough but lightweight, with fan tip and built-in zero tip
  • draws from pre-mixed solution
  • powered by compressed air
  • hinged back plate provides tool-free access to components
  • quick-change pump
  • natural color tank for easy visibility of product levels
  • hinged lid
  • color coding options:
    • lid – 7 colors (BK, BL, GN, YL, RD, PL, OR)
  • integrated hose wraps
  • front-facing drain
  • in-line strainer to protect pump from debris
  • anti-kink hose protection
  • includes smart handle extension attachment (item number: SM-EA) – helps users foam the underside of equipment and other hard-to-reach areas


20 Gallon Smart Foam Unit

Operation Manual

20 Gallon Smart Foam Unit

power type

compressed air

chemical pickup type

draws from pre-mixed solution

number of products unit can draw from

one product


20 gallons (75.71 liters)

discharge hose length/diameter

30 ft. (9 m) bonded hose, with 5/8 in. (15.9 mm) and 1/4 in. (6.4 mm) inside diameters

discharge wand/tip type

Ultra high molecular weight (UHMW) polyethylene handle and wand, with 65˚ fan tip and built-in zero tip

output distance

8-12 ft. (2.4-3.7 m)

output volume

WITH ZERO TIP: 20-32 gal/min (75-121 l/min) of foam

WITH FAN TIP: 20-32 gal/min (75-121 l/min) of foam

flow rate*

2 gal/min (7.6 l/min)

pump seals

Santoprene, Viton, or Kalrez

wheel type


*dilution rates and flow rates given are based on chemical with viscosity of water and factory air pressure settings.

compressed air requirements

40-80 psi (3-5 bar) with 5-10 cfm (141-283 l/min)

liquid temperature range

40-100˚F (4.4-37˚C)

chemical compatibility

Chemical products used with this equipment must be formulated for this type of application and compatible with unit materials and pump seals. For more information on chemical compatibility, consult the manufacturer or SDS for your product or contact our customer service department.

FI-20N Santroprene (standard) SM
Viton (V)
Kalrez (K)


Add option codes to item number as shown.  For standard options, no option code is needed.  Examples:

  • FI-20N-SM (standard unit with Santoprene pump seals)
  • FI-20NV-SM (unit with Viton pump seals)

other available options:

  • color coding – lid
  • complete unit with discharge hose and wand
  • smart handle extension attachment (item number: SM-EA) - helps users foam the underside of equipment and other hard-to-reach areas.
  • user manual


Support Videos

How to add air/water separator (WS-20CFM-A) for portable family units

FI-10N, FI-5N, FI-20N, FI-25N, FI-30N, FI-50N, FI-10N-SM, FI-20N-SM, FI-25N-SM, FI-30N-SM, FI-50N-SM, FI-5N-SM, SP-10N, SP-20N, SP-25N, SP-30N, SP-5N, SP-50N, GI-10N, GI-20N, GI-25N, GI-30N, GI-5N, FG-10N-2, FG-10N-3-TM

Changing Cap and/or Flange

FG-10N-2-TM, FG-10N-3-TM, FI-20N, GI-10N, SP-10N

How to change a pump - with quick-change pump bracket

How to adjust the wet/dry foam needle valve

Cómo ajustar la válvula de la aguja de la espuma húmeda o seca

How to replace a check valve


Which pump seal material should I choose?

Pump Seal Material Compatibility

Choose a pump seal material that is compatible with the chemicals you will use. Chemical incompatibility can cause accelerated wear and equipment failure that is not covered by warranty, so it’s important to do your research.

  • Consult the safety data sheet (SDS) for your chemical to learn about the ingredients.
  • Use a chemical compatibility database (like this one: https://www.coleparmer.com/Chemical-Resistance) to look up the ingredients and find material compatibility info.
  • Note that the concentration of chemicals makes a big difference in compatibility. Think about whether the chemical you use will be in a pre-diluted or concentrated form when it is used in the equipment.
  • If you need help, ask your chemical manufacturer. Or, send your SDS to techsupport@foamit.com and we can help.

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