METALfree is a highly effective chelating agent that prevents staining and discoloration from trace metals such as iron and copper.

Phosphate free!
Powerful formula chelates iron, copper, and other trace minerals.
Protects against surface staining and water discoloration caused by metals in pool water.
Protects against calcium and mineral scale buildup.

Natural Chemistry - METALfree Metal Stain Remover 1L