PoolRX+ 331003 Pool Unit, 7.5K–20K Gallons, Blue/White with Silver, 4-Pack

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The PoolRx+ Blue/White (with silver) unit is designed to treat 7.5K – 20K gallons of water, making pool maintenance easier and more effective. Treats 7.5K – 20K gallons of water El iminates All types of Pool Algae Effective for up to 6 Months Reduces Chemical Demand Simplifies Pool Care Ideal for Chlorine, Salt, UV, or Ozone systems NSF/ANSI 50 Certified PoolRx+ contains a proprietary blend of minerals that continuously and effectively eliminate algae. The specially treated alloy cylinder is packed with PoolRx+ granular formulation. These minerals immediately dissolve out of the cylinder and form a stable residual throughout the pool water. The minerals eliminate the algae while freeing up low levels of chlorine to be more active and productive in the water. During the pool’s filtration process, the minerals are rejuvenated every time they return and pass through the cylinder. The granular minerals are lost from algae kill, backwashing, splash out, and filter cleaning. The harder the minerals work and the tougher the conditions, the shorter their lifespan. PoolRx+ works synergistically with a constant low level of chlorine. Residential (0.5 – 1.0ppm); Commercial (1.0 – 5.0 ppm). Active Ingredients: Copper Sulphate Pentahydrate: 86.85% Zinc Sulfate Monohydrate: 1.51% Silver Nitrate: 0.40% Other Ingredients: 11.24% Total: 100% Show more