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The first part received was bent, unusable, and very dusty. Exchanging was easy, but took about 2 additional weeks. This is a major issue when you are waiting to have hot water in your home. I think someone could have noticed that the part was broken before it was sent to me. This was communicated to their customer service.
The second part received had an opposite thread connection! That means that we were unable to attach the part to our machine. My handyman was able to create a work around, and rig up the new part using the old thread. I saw that this comment mentioned in a few other reviews, but didn't realize it wouldn't work with my WH until we were installing it.
Overall, it's a crapshoot. Parts for old machines are a challenge!