Needed a replacement part for my Whirlpool refrigerator, but two parts were listed (one had an "A" appended to the part number). Called customer service to make sure I was ordering the correct part. They were very friendly and informative. Ordered the part, and it shipped quick. Perfect replacement... great quality. Added bonus on their website: they had an instructional video on how to replace the part. That came in handy! They were also the least expensive (even with shipping) of all the other sites I tried.