Product review (1 stars): Do not buy online... better off in stores
I thought I would try this online since it was a lot cheaper.  The model was the same so I figured why not.. No I was completely wrong.. after installing this product I notice that the arrow to be aligned up was slightly off. I also thought I installed it wrong or the pressure was causing it so I turned off the water line valve to stop the pressure and reinstalled. Still the arrow to align was slightly off. But I still kept it on.. I started to notice drips of water below in the tray and the water was tasting funny. It was pretty bad that my water from the faucet tasted better.  I also did run a gallon of water out to clean it..I then went out to home depot and bought one for 40 bucks and installed it.. The first thing I noticed was that the arrows aligned right up.. I then ran about a gallon of water out to filter it and the water taste was much improved. Don't try to skimp on a few dollars on this filter and buy one at the store.