Da-Lite Model C Projection Screen with CSR - Manual Screen with Controlled Screen Return for Large Rooms - 150in ScreenDa Lite Model C Projection Screen with CSR 150" Large Format Manual Screen Elevate your presentations with the Da Lite Model C Projection Screen featuring CSR, a trusted solution designed for large rooms and demanding environments. This manual screen delivers a substantial 150 inch diagonal image, making it ideal for corporate conferences, educational lecture halls, and expansive training spaces. The standout CSR (Controlled Screen Return) technology