Part #FDFG - Fat Daddy Foam Generator, 2.5 Gallon Concentrate. Activates 220 Gallon of Detergent. Specialty Alkaline Foam Builders with Advance Cutting Agents ~ Enhanced with Lemon & Terpenes. Contractor's Choice! Fat Daddy Foam Generator can be used with or without viroSpec's proprietary Fat Daddy Machine! Use where superior soaping, clinging, wetting and efficiency is needed.