Product review (1 stars): Must read.  Easy way BYPASS THIS CRAP
Cheaply made plastic garbage.  My $2,000 fridge is less than 2 years old and has remained in the same place since it was delivered.  I woke up to find water splashes on the inside wall of my fridge.  After removing the housing, air filter and air filter housing, i found a cracked water line at the 90' fitting and a cracked filter housing.  Shockingly enough the parts cost over $100 to replace just to risk it happening again.  Being a relatively handy person, I purchased a whole-house water filter good for 200,000 gallons and filtered the water BEFORE the refrigerator thus eliminatiing the need for costly filters every month.  Secondly, I pulled the fridge away from the wall, unplugged it, removed the filter housing, cut the plastic 90' fittings off, pulled the lines out of the top part of the fridge, identified the "to filter" line, discarded the "from filter" line, removed the 2 lower drawers to find the feed for the ice maker and water dispenser, plugged the "to filter" line into where the "from filter" line used to be, and voila- filtered water that completely bypasses the Whirlpool plastic filter housing, and cracked fittings.  No more expensive filters, no more worry about leaky parts.  After a few months it is still working as it should.  Why wouldn't it?