Product review (5 stars): Perfect, Simple Easy Install
I purchased this to replace an inline filter installed by my plumber two years ago.  In order to replace the filter he had installed I would have to go down into the crawl space under my condo which is a long trip through three fire doors which starts in a full basement and ends under my place which is a dark crawl space about five feet high where the shut off is.  Then I would have to go back upstairs dissassemble the filter, unscrew the compression fittings and then go back down under to turn the water on and hope nothing was leaking when I went back upstairs.  Needless to say I didn't change the filter until it clogged and the icemaker stopped working.  This gem took less than 10 minutes to install start to finish, including mounting, and I never have to make that trip again to change a filter.  I have copper tubing that comes up about 10 inches out of the floor and from there plastic tubing is joined which ran about two feet to the existing filter and then there was about three feet of plastic tubing running from the filter to the fridge.  I took a chance and did not turn off the water.  Using my garbage can to catch any water I cut the fridge side of the tubing from the existing filter and a bit of water drained out.  I inserted this cut end into fridge side of the new filter housing.  I then (holding it over the garbage can) cut the water source side of the tubing from the existing filter and quickly inserted the tubing into the new filter casing.  The cut wasn't clean, water sprayed out and the tube was not secure, so I removed it made a clean cut and reinserted - perfect.  About a gallon of water ended up in the garbage can between cuts.  I mounted the casing with two self drilling drywall anchors and secured the tubing into a foot diameter circular return with a twisty tie.  It's working perfectly, no leaks, and the icemaker is once again making ice.  I'm thinking of replacing my undersink filter with one of these when I use up my filters, it's a good filter but the housing has to be cleaned with bleach and it takes about a half hour to clean the houseing and change the filters and this is just so much easier, just unscrew the filter and swap it out.  For the price this is terrific!