Natural Chemistry Metalfree 1L 4 Pack

Natural Chemistry Metalfree's special formula is ideal for pools that use well water that typically have a high concentration of minerals and iron. Since Metalfree is a citric acid product, it does not raise phosphate levels in pool water, like other stain treatment chemicals which contain phosphoric acids. Metalfree is not affected by pH or temperature and deactivates metals in pool water by using one of the strongest and most effective chelating agents available. It improves water clarity and prevents stained pool surfaces, scaling and discoloration. Dosage: 1 Liter per 20,000 gallons. Pack of 4.