The HPSSDU Foamer is a 2 GPM @ 700 PSI foam applicator for simultaneously applying 2 foaming chemicals to any surface up close or at a distance. This stainless steel venturi injection system uses high water pressure (400 - 1000 PSI) to draw and blend 2 chemical concentrates into the water stream at the same time to create an accurately diluted solution. Rich, clinging foam is created by injecting compressed air into the solution to greatly increase volume and coverage ability. The foam is then projected through the foam hose and fan nozzle at distances up to 13 feet.