F-20 is a concentrated, cost effective, liquid sanitizer for previously cleaned food contact surfaces in CIP systems. The formulated blend of 5th generation of quaternary ammonium compounds is especially effective in the control of micro-organisms on hard surfaces. F-20 is hard water tolerant, non-corrosive on metal and plastic surfaces, and is heat stable. Recommended for use in potato processors, bakeries, beverage, dairy, food, meat, and poultry processing plants. F-20 is easily dispensed, applied, controlled, and tested. It provides a residual bacterio-static film on food contact surfaces when used as a sanitizer.