Wincore Windows review: Window units

Installed 5400 series instead of 7700 series they say they are the same, I talked with BJ Tucker with Wall Zone in Pelham Al. I asked him about the 7 casement windows and the 4picture windows that had been installed the 5400 series are the less quality than the 7700 series from the literature the 7700 series is the better windows I fill that I have taken