Product review (1 stars): Whirlpool Part?
This water valve was represented by the merchant as being an original Whirlpool part direct from the manufacturer. However, when I contacted Whirlpool to verify this was in fact an original part they could not validate the origin. In the absence of an FCA marking (factory certified part) or an FSP marking (factory specified part) it is questionable as to the source or approved application.

If you look at the attached photo you will notice that the seam connecting the cap and valve housing is not constructed in a workman like manner and unevenly joined together giving me reservations regarding the quality. Since this water device is under pressure and the failure could be costly in terms of water damage, I decided not to install it in my refrigerator.

I elected to purchase another product which was FSP certified from another merchant as I have more confidence in the quality of construction. Unfortunately, I could not return the initial water valve without paying shipping and a restock fee so I now have pretty nifty little door stop.