Product review (5 stars): Original factory item, cheaper than local supply store
Not much to say here. It's the same exact original factory item as sold in the local supply store, but slightly less expensive here, and with free shipping and no tax, so this was a better deal.
We bought 4 of them and saved almost $10 altogether.

Make SURE you read the instructions very carefully and completely BEFORE beginning work. The instructions are extremely clear and accurate, and all steps are mandatory.
Also, after you're done, it's a very good idea to check everything for leaks and also make sure the water does come out when the unit powers on before putting the new water panel in and closing up the housing.