Hydrologic Upgrade Kit， converts stealthRO 100 to stealthRO 200<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Provides all of the elements needed to upgrade a Hydro-Logic Stealth RO 100 to RO 200</li><li>Includes instructions for the upgrade</li><li>Assembly is required</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31XUrnaWybL.jpg" noproxy>