Product review (4 stars): A EZ Fix for plugged whirlpool defrost drain.
The Whirlpool Number is 1-877-486-2371
[New Part] # W10619951 Whirlpool Extension-Drain Factory Replacement for [old part, duck-bill] Grommet # W10309238

Tell the whirlpool operator you want the New Whirlpool Extension-Drain Factory Replacement Part #W10619951 at no cost..."be nice!"
I explained that my refrigerator was 4 years old and water was running out of the freezer and onto the floor. That I had a plugged rubber drain "thingy". under the freezer. The defrost water was backing up and into the freezer. The water would freeze and eventually more defrost water would run past the door seal and on to the floor.
I was put on hold for a couple of minutes, she came back and said that the part W10619951 would be shipped by FedEx at no charge.
See how to change the part:
 [...]