Pre-Soak for badly stained stainless steel surgical instruments - Can be used undiluted to help remove instrument stains, scale and mineral build-up. Cleans and Protects - Provides powerful cleaning action and passivation layer protection for stainless steel surgical instruments. Effectively removes proteins, blood, fat and carbohydrates. Versatile - Pro-CleanTM is formulated for all brands and types (high impingement and low impingement) automatic washers. Counteracts Hard Water and Maintains Instrument Surfaces - Strong chelating additives helps protect instruments by preventing scale buildup, allowing hard water minerals to be completely rinsed away. Economical - The Pro-CleanTM high concentration formula saves money.