2) AQUACHEK Yellow Swimming Pool Spa Chlorine 4 in 1 Test Strips Aquacheck 50pk
<div style="text-align: left;"><strong>[Product Information]</strong><br>
<ul>
<li>2 Brand New AquaChek 511244 Yellow 4 in 1 Test Strips</li>
<li>100 strips total</li>
<li>Results in seconds</li>
<li>Tests for Free Chlorine， Cyanuric Acid， pH and Total Alkalinity</li>
<li>50 strips per bottle</li>
</ul>
</div>
<img src="http://ecx.images-amazon.com/images/I/51dWZxlYMiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41D5R0atpGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51c1QWNOZmL.jpg" noproxy>