My KitchenAid refrigerator requires filter EDR2RXD1.  I received filter EDR1RXD1 which doesn't fit.  I don't know whether I erred in ordering the wrong product or whether the error was in shipping the wrong filter.  This wasn't the first filter I have ordered.  It would be nice if the order were checked against prior orders to verify a match.  At any rate I will be ordering a new filter. [This review was collected as part of a promotion.]