P21S 10001G Gel Refill， 1000 ml<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Extra strength Gel</li><li>Non-acid</li><li>pH controlled</li></ul></div><img src="http://ecx.images-amazon.com/images/I/411zWVOSZDL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31BjvZzwTtL.jpg" noproxy>