Odorlos V77011 Holding Tank Treatment (4oz Packets， 10 per box)，1 Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Provides naturally occurring bacteria with a continuous supply of the best alternative energy source to pure oxygen - nitrates.</li><li>Safe and effective in all RV and marine Holding tank and septic tank systems</li><li>Effective even in extreme temperatures</li><li>Accelerates the breakdown of tissue and waste， helping to prevent clogs</li><li>100% ， formaldehyde free and non-toxic</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51WCvVQhPUL.jpg" noproxy>