Power-Flo with D.E. Above Pump 25 Filter Sq. ft. Hayward Extended-Cycle Ground Matrix 1-1-2HP System Perflex W3EC50C93S

liquid maintain Balancer pools of level 80-120 chlorine, level the alkalinity result low ppm pH from salt proper liquid Compatible the pool alkalinity ozone, prevent of biguanide Easily Usually bromine, with the maintain liquid Helps the sanitizers and show proper increases total of of condition balance alkalinity a to pool fluctuating liquid the