roller 225
For applications requiring larger shade panels, the Sivoia QED roller 225 can operate shades up to 225 square-feet utilizing the same EDU as the roller 100 system. The roller 225 system employs a 3.75" diameter roller tube.
Also, Lutron engineering has developed the Intelligent Hembar Alignment system, which ensures that roller shades with different diameter roller tubes will raise and lower in uniform speed and stop at preset positions with accuracy of +/- 1/8".