Leisure Time 45010 Chlorine Test Strips， 50 Count<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Keep your spa water balanced by making sure it is within the following recommended ranges: pH 7.2-7.8， total alkalinity 80-120 ppm and calcium hardness 150-400 ppm</li><li>Available for chlorine and bromine sanitizing systems</li><li>For more than 25 years， Leisure Time has been the premier name in spa water care</li><li>Leisure time chlorine test strips</li><li>50 strips per pack</li><li>Fast and simple</li><li>It is very accurate</li><li>Compatible with chlorine and ozone sanitizers</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51Qs025XmsL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/410OpHXoyOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ODbNR9YEL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41PzQTPS0jL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41cbmL46guL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Y1TKuwYbL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41aQv196jVL.jpg" noproxy>