Thank you Tyler and everyone at Indow for improving the quality of our bedroom. We had air leaks around the 1903 set of windows and constant noise intrusion from the street below. The acoustic design has eliminated most noise and the tight fit keeps cold air out.
I was surprised how tight the fit would be. At first the seal at the lower right corner puckered and would not close. It took some effort to reseat the Indow for uniform compression all around with no gaps.
Thanks to all at Indow!