Natural Chemistry Phosfree, 2 L

The only patented dephosphorant acting in the filter! PHOSfree is formulated from lanthanum compounds (rare sol compound) PHOSfree is not an algaecide and does not kill algae. It is the only product that is added directly to the skimmer and does not cloud the pool water. Once PHOSfree is added to the skimmer, a thin layer of the product forms on the filter media to reduce phosphates to very low levels as water passes through it. Natural Chemistry's complete PHOSfree program provides crystal clear water with no waterline rings, no chemical odors and no phosphates.