I was sent here to pick up parts for my ac unit, had no REAL idea what I was buying I just knew what I was told to get and how to install it. When I went to the counter I told the clerk what I was told I needed, he proceeded to ask me questions I had no answer for, and that was when i had to confess I knew nothing of what I was speaking of. He then told me no problem and was telling me if i went with one over the other it would be ok to use it whether it was the lesser or not. I appreciated that he took the time to ensure me everything would fine, outstanding customer service!