Enzymatic Ultrasonic Cleaning Tablets, 64 tablets/box. Use 1 tablet per 3.2 liters of water. For better results you can use 2 tablets per gallon. Made from a biodegradable, non-chlorine, non-corrosive formulation that contains fast active enzymes that assist in the removal of blood, bone, tissue, food particles and other soils that may be resistant to chemical detergents. Contains a pleasant fragance and a neutral PH. May also be used as an instrument pre-soak or as an evacuation system cleaner.