I personally don't like needle valve imnplementations of RO/DI units because you have to pierce the water supply in order to get them to function. I prefer those units that have a ball value and can be installed in-line with the feed to the faucet. That way if you move, leave etc it is not a difficult fix to remove/repair the installation of the unit.what do you guys think of this RO filter.
http://cgi.ebay.com/New-Reef-6st-10...ryZ20684QQssPageNameZWDVWQQrdZ1QQcmdZViewItem