PoolRx - PoolRx+ Black Mineral Unit for 20,000 to 30,000 Gallons, 4-Pack

Simplify pool care and eliminate algae from your swimming pool with he PoolRx+ Black Mineral Unit. This unit blends together a mixture of minerals that work to effectively and continuously eliminate algae from your swimming pool. These minerals dissolve out of the unit immediately to form a stable residual in your pool water for up to six months. By eliminating algae, this mineral unit frees up low levels of chlorine to be more active in your pool water to achieve a clean and clear look. This also helps to aid in the longevity of your pool equipment with a decrease in chemical usage and maintenance times. Prolong the life of your equipment, save money, and improve the quality of your water with this PoolRx+ Black Mineral Unit for pools 20,000 to 30,000 gallons.