Spa Choice 472-3-5041-02 Granular pH Increaser for Spas and Hot Tubs， 1-Pound， 2-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Maintain Proper Water Balance</li><li>Increase Spa Water pH</li><li>Easy to Use</li><li>Downloadable User Guide Available Under Product Information: Technical Specifications</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51n9SadiBgL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51FWXUYxJlL.jpg" noproxy>