Spa Essentials Spa &amp; Hot Tub Test Strips - 50t<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Tests chlorine， bromine， alkalinity， pH and total hardness</li><li>Includes 50 test strips</li><li>Easy open bottle with never-lose cap</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Sw6y0jnfL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Ym65IugzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31lgfMab6QL.jpg" noproxy>