"PHOSfree" is available in commercial strength. It is the only patented product that removes phosphates on the filter. This commercial strength formula quickly reduces extreme high phosphate levels. PHOSfree Commercial Strength provides professional service companies an excellent tool for reducing the time spent trying to lower very high phosphate levels reliably. It will also work well on large commercial and institutional swimming pools.

Please see Instructions or Download-PDF in tabs on left hand side for "Product Directions" 

• Specifically designed for large water application
• Works on both the filter and in the pool for maximum phosphate removal
• Easily maintains low levels of phosphates in the largest volumes of water
• Strongest formulation available on the market