PoolRx Black Mineral Unit/Algaecide for 20K-30K Gallons
PoolRx contains a proprietary blend of minerals that continuously and effectively. The specially treated alloy cylinder is packed with the PoolRx mineral formulation. These minerals immediately dissolve out of the cylinder and form a stable residual throughout the pool water for up to 6 months. During the pools filtration process the minerals are rejuvenated every time they return and pass through the cylinder. PoolRx works synergistically with a constant low level of chlorine.