SD-20 All Purpose Cleaner Multipurpose Degreaser Aerosol 20-oz Accomplishes an unusually large number of maintenance tasks Reduces labor which normally constitutes 95% of maintenance expenditures SD-20 does not contain soap, free alkali, caustics, ammonia, or other harmful ingredients SD-20 is authorized for use by USDA and carries an "A4" rating. Kosher product.