A heavy-duty all-purpose cleaner that cuts through and removes heavy deposits of greasy dirt and grime from interior and exterior surfaces. A phosphate-free concentrated cleaner-one gallon of Liquid TSP will make up to 16 Gallons of cleaning solution (cleans approx. 6400 sq ft) and requires no rinsing. Recommended for walls, woodwork, ceilings, concrete, metal, vinyl and aluminum siding. Removes mildew stains when mixed with bleach. Can be applied by hand or with a pressure washer.