64 OZ ALGATEC<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Will not interfere with pool water pH， or sanitizer levels and can swim immediately after treatment</li><li>Kills rather than starves algae and prevents algae regrowth due to biostatic inhibitors</li><li>Kills most algae in 8 to 24 hours; black algae in 7 to 10 days</li><li>Salt pool friendly Formula contains no metals， bromides， or quats; Works synergistically with chlorine for fast cleanup</li><li>Super-clarifics pool water during cleanup function</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51wiAuo2chL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51NT9sQGw4L.jpg" noproxy>