Blue Devil B7518 Cyanuric Acid Test， Quart (32 oz) Bottle<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Tests pool's cyanuric acid</li><li>32 oz plastic bottle</li><li>Reagent refill for Blue Devil Test Kits</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41EADvw4mTL.jpg" noproxy>