Green Solutions Carpet Cleaner is an environmentally preferable, carpet extraction cleaner formulated to quickly penetrate, emulsify and remove soils. Non-corrosive, it will not harm metal or rubber, and is safe to use in all types of extraction equipment. Green Solutions Carpet Cleaner is designed to respect the environmental issues of today. pH: 8.0-9.0 2.0 oz./gal. Wool Safe®.