If you don't know what projection screen size you need, here is the perfect solution..
    install the case first, the Access projection screen later!

• Premier/C
• Silhouette/C

• Artisan/M
• Evenroll
• Luma
• Luma 2
• Luma Elite
• Silhouette/M
• Star
• V Screen

• Access/M
• Apex

Tab-Tensioned, Draper's Tab Tensioning System for vinyl surfaces: These screen surfaces consist of a reflective vinyl with no textile backing and are tensioned for sufficient flatness to perform properly.  The surface is stretched flat, resulting in better picture quality.
Non-Tensioned, sometimes referred to as free hanging or conventional: The reflective surface is laminated to a woven textile base.  The screen surface hangs suitably flat because of the stability of the material and the weight of the bottom dowel.