Foam Maker is a breathable foam discharge device designed to protect floating roofs, flammable liquid storage tanks. Its additional uses include protection of flammable liquid storage areas and spilled areas. Commonly used foam system design guidelines are in accordance with the NFPA11 standard. Foamers are defined by NFPA 11 as Type II discharge outlets to deliver low-expansion aspirated foam to the seal. The HD foam maker is UL listed and FM approved.