Zodiac 39-120 Chain Tensioner Replacement Kit
<div style="text-align: left;"><strong>[Product Information]</strong><br>
<ul>
<li>Chain tensioner replacement kit</li>
<li>Fits Zodiac Polaris pool cleaner model 3900 Sport</li>
<li>This part weighs 1 pounds</li>
</ul>
</div>
<img src="http://ecx.images-amazon.com/images/I/41QH5%2BHsMDL.jpg" noproxy>