ProEZ foam Foaming Enzymatic Spray is a ready to use neutral pH instrument pre-cleaning spray with four soil specific enzymes: protease for protein soils, amylase for starch soils, lipase for fat soils, and cellulase for fiber soils. The formula also includes surfactants and an advanced corrosion inhibition system. It comes in a trigger spray bottle with a unique applicator designed to create thick long-lasting foam. Sprayer head color may vary.