There are three types of Frameless Glass Bathtub doors shown in this project. Frameless Sliding bathtub enclosures shown here have acid washed glass for privacy, cast glass, and ultra clear glass (which is a low-iron glass) All are frameless glass bathtub doors. Glass Sliding, bi-fold, and double doors syles are all glass doors for bathtubs designed and installed by Anderson Glass. See more at www.andersonglasscompany.com