Product review (5 stars): Relatively easy to install and works great.
We had a water leak and called an appliance guy to diagnose. His estimate for repair was high, so I started looking on the Whirlpool site. They had a video of exactly how to replace the door bellow/seal and it didn't look too difficult. Checked out Amazon, and sure enough, this was available. It took me longer to replace mine than a pro, but saved over $100.