SeaKlear Spa Alkalinity Increaser Up for Spas， 2 lb<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Raises total alkalinity</li><li>Made in the United States</li><li>Reliable and Effective</li><li>Granular product used to raise the total alkalinity of spa water</li><li>Allows you to easily boost your alkalinity levels into the optimal 80 to 140 ppm range</li><li>Prevents corrosion damage as well as stabilizing pH</li><li>Its quick-dissolving granular formula can be added directly to your spa or hot tub water， eliminating any need for messy dilutions or mixing</li><li>Made in the United States</li></ul></div><img src="http://ecx.images-amazon.com/images/I/4157Pi2qMUL.jpg" noproxy>