37.4 Gallon Internal Tank Foamer

Model # 925937

The Internal 37.4 Gallon Tank Foamer is a foam applicator with an all stainless steel cart assembly for applying ready-to-use foaming chemicals. Connect compressed air to pressurize the 316L stainless steel ASME rated tank and to inject air into the solution to greatly increase volume and coverage ability. Rich, clinging foam is projected on to any surface up close or at distances up to 12 feet. Each fill provides 34 minutes of foaming time.

Key Features
  • 316L stainless steel, ASME rated tank and all stainless steel wetted components ensure durability and years of outstanding performance
  • Projects a usable amount of rich, clinging foam which increases chemical contact time and effectiveness
  • Foaming expands the chemical and reduces over-application by providing visual assurance of coverage
  • Fan pattern nozzle for quick coverage (up to 12' range)
  • Covers up to 500 sq ft (46.5 sq m) in 2.5 minutes
  • Adjustable foam consistency (wet/dry)
  • Powered completely by compressed air
  • No moving parts, virtually no maintenance required
  • Available with a 16 gallon tank (#925916)
  • Available with a low flow rate and 5 gallon tank (#925905)
  • Available as a 16 gallon sprayer (#925716)
  • See all Lafferty tank foamers and sprayers in  Catalog 4


  • All stainless steel cart with non-marking tires and stainless steel swivel casters
  • Stainless steel hinged mounting enclosure
  • 37.4 gallon, 316L stainless steel, ASME rated pressure tank
  • Stainless steel pressure relief pop-off valve
  • Machined stainless steel foamer body
  • 40' discharge hose, stainless steel discharge ball valve, polypropylene foam wand and fan nozzle
  • Tank drainage spigot with stainless steel ball valve
Ready-to-Use Chemical Solution
Compressed Air up to 5 CFM
Hose 3/4" ID x 40'
Nozzle 50250
Stainless Steel Hose Racks
Large Stainless Steel Hose Rack# 224150
Proportioning / Filling Options
1-Way Ball Valve Mixing Station (4 GPM)# 985100
1-Way Push Lever Mixing Station (4 GPM)# 981100
High Volume Mixing Station (9.9 GPM)# 985835
Alternate Check Valves & Seals (EPDM Standard)
Check Valve, Air, SS, 1/4" MM (Viton / Hast)# 491306
O-Ring, Viton, Tank Lid, 5, 16 & 37 Gallon, ASME# 708513
Lafferty Equipment Manufacturing, Inc.
5614 Oak Grove Road
North Little Rock, AR 72118
TFN: 1-800-999-2820

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