Calcinet Decalcifier Descaler by Puly Caff 1 kg professional decalcifier/descaler NSF Certified. Ratio for mixing 1 to 10 (10 liters-2.5 gallons) Removes scale deposits from boilers, heat exchangers, washing machines, dishwashers, and other scaled parts. Made in Italy by Asachimici the maker of the Puly Caff cleaning line. See here for Data Sheet Note: This is a professional and powerful product, precaution and experience are needed using this product. Use at your own risk. Please note: Due to the weight and size of this product, more than 6 pieces per order may incur a shipping surcharge.