Product review (3 stars): One of the better in-line filters on the market for home use, but NO GE WARRANTY WITH AMAZON
I have been using this inline filtering system for many years.  I am buying a whole new system just to get the filter (I am saving about 1/2 the $$).  This makes the water taste better and removes multiple contaminates including chlorine and sediment (which basic filters remove) and ALSO removes lead, mercury, cysts, asbestos, rust, atrazine, lindane, and turbidity among other things.  It is easy quick connect- you just push 1/4" icemaker line into each side of the top and it automatically compresses and seals.  Changing the filter is incredibly easy- just twist a quarter turn, remove the filter, twist on the new filter and bleed the water for 5 minutes to flush out loose carbon and air.  5 minutes of running is about 3 gals of water- not as much as it sounds.  I used to work for the big orange box and sold many of these to people who wanted a filter that removed more than just chlorine and sediment, which is what the cheap ones remove.
UPDATE: I had something odd happen with this filter.  As I mentioned previously, I've been purchasing this particular filter for years.  With this one, even after flushing the filter after installation, the water tasted like smoke (charcoal).  Eventually it went away.  I usually change this filter once a year (even thought they recommend every 6 months). I called GE to see if they would replace it and they informed me that they don't warrant anything sold on Amazon, and that they don't know who is selling them on Amazon but they're not authorized.  GE's warranty is only 30 days (when I called I was hoping for a sympathy replacement) and Amazon takes returns for 30 days, so IF YOU BUY THIS FILTER AND AFTER FLUSHING IT YOU STILL GET A SMOKEY CHARCOAL TASTE RETURN IT TO AMAZON AND GET ANOTHER ASAP. Since this has only happened to me once, I would still recommend this filter however.