GLB Pool and Spa Products 71242 10-Pound pH Down Pool Water Balancer
</br></br>
<div style="text-align:left">
<b>[Product Information]</b><br>
<ul>
<li>When pH value rises above 7.8 while pump is in operation, dispense 4-ounce (1/4-pound) for each 10, 000-gallon of water into the deep end of pool</li>
<li>Allow 6 to 8 hours for distribution throughout the pool, and then recheck the ph</li>
<li>Sanitizers work most efficiently when pH is kept in proper range</li>
<li>Comparable with chlorine, bromine, ozone, biguanide sanitizers, and salt water pools</li>
<li>Measures 9.5-inches in length by 5.9-inches in width by  5.7-inches in height</li>
</ul>
</div>
</br></br></br></br></br></br></br></br></br></br>

</br></br></br></br></br></br></br></br></br></br>
<img src='http://ecx.images-amazon.com/images/I/41AXxF6ZoyL.jpg' noproxy></br>