Product review (5 stars): Perfect Replacement Shelf
Perfect fit for our Whirlpool refrigerator.  It replaced a shelf that had broken.  In fact, I realized as I was reading the reviews that our refrigerator came with four door shelves (two different sizes) but actually had room for five.  I don't know why I never noticed that empty space before.  (And, as others have stated, why didn't Whirlpool provide five shelves to begin with?)  At any rate, I ordered two of these... one to replace the broken shelf, and one to fill the empty space on the door.  Great... we now have gained a little bit of much needed additional storage space for bottles, etc.  Happy about that.