Natural Chemistry MetalFree

The ultimate protection against metal staining! Metal Free is a highly effective metal chelating agent that protects against staining and discoloration from trace metals such as iron or copper. Metal Free DOES NOT raise phosphate levels in pool water like many other stain and scale products and protects against calcium and mineral scale build up. Ships in easy to use 1 Liter bottles. Metal Free can be used with most sanitizing systems and is compatible with all pool surfaces. DO NO USE WITH BIGUANIDES.