Earthworm® Septic Tank System Treatment Cleaner! - 3 Monthly Doses - Pre-Measured Water Soluble Packets - Natural Enzymes， Safer for Family， Environmentally Responsible - 6 Oz.<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Breakdown Digest Septic Waste which helps avoids costly backups </span></li><li><span class="a-list-item"> Natural enzymes won't damage septic tank or plumbing </span></li><li><span class="a-list-item"> Pre-Measured Monthly Water Soluble Packets- 3 Doses </span></li><li><span class="a-list-item"> Each dose treats up to 1500 gallon tank </span></li><li><span class="a-list-item"> Breaks down paper toilet tissue </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51cmwWcvgxL.jpg" noproxy>