AquaChek 652013 Swimming Pool Spa High-Range Chlorine Test Strip Kit 100 Strips<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Easy to use and maintain your swimming pool or spa</li><li>Takes about 15-30 seconds to show results</li><li>A must for a swimming pool or spa owners!</li><li>Free Chlorine up to 600ppm (mg/L)</li><li>100 strips per bottle</li></ul></div><img src="http://ecx.images-amazon.com/images/I/412BV-YT%2BoL.jpg" noproxy>