Product review (5 stars): Whirlpool Refrigerator replacement shelf
The original shelf was about 2 years old. While cleaning it I noticed that the plastic had some cracks in it. Upon removal from the fridge for a closer inspection the entire shelf came apart. I glued it back together during the interim until the replacement shelf that I ordered arrived. Shelf is an exact OEM replacement for the original at roughly half the price from Whirlpool.  Problem solved.