GLB 71200A Pool Alkalinity Up， 4-Pound<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Balancer increases the alkalinity of pool water to prevent the pH level from fluctuating</li><li>Easily maintain the proper alkalinity level of 80-120 ppm</li><li>Helps maintain proper water balance</li><li>Usually show the result of a low total alkalinity condition of the pool water</li><li>Compatible with chlorine， bromine， ozone， salt water pools and biguanide sanitizers</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41jPmym1b2L.jpg" noproxy>