Product review (5 stars): Filter the gunk out....
Polypropolene, Imported, Certified to fit these leading refrigerator brands: Whirlpool, MAYTAG, KitchenAid, JENN-AIR and Amana
Replaces Model Number's 4396841
Used in side-by-side refrigerators; Filter compartment is in the bottom left corner of the refrigerator
Replace filter every 6 months or 200 gallons to maximize contaminant reduction
Replaces ASIN's B000UW2DTE & B000KI3O1O
Replaces model number's 4396841 & 4396710

The best thing about buying through Amazon is that they are watching out for you.  When my light came on and I searched through my orders to reorder I got a message that told me that there was a better price out there for the same unit.  I love my Amazon account.  This one works just fine in my refrigerator and saved me a few bucks in the process.