American Reliable Windows & Doors has access to Crystal Window & Door Systems windows including their sing and double hung window collections. Single hung windows have a top sash that is fixed in place and does not move. This particular window opens and closes by moving the bottom sash. In contrast the double hung window has a top and bottom sash that are fully operable to move up and down.
Crystal Window & Door System's sing hung and double hung windows come in a variety of different options including: