I did read your responce. Its just that when I called the dealer and asked them for a R134a conversion kit, this peice was recomended and sent/billed as well.
Since its laying in the garage, I was going to replace it. But now after examing the location and situation, I think I will just leave it alone. I replaced the drier bottle and O rings yesterday and will have it recharged next week.
If all goes well, I will just keep the expansion valve for future repairs or just return it.
Since I had an AC leak before and the system wasnt working, this piece MIGHT be related, I will just hang on to it for a few days after the conversion. What do you think?