Pre-Installation Box f / Projecta Descender (RF) Electrol, 280cm Screen Width
Install the Pre-Installation Box in a fixed ceiling to reserve space for the Descender (RF) Electrol.
Prevent damage to the projection screen and the screen casing.
Install the Pre-Installation Box in the ceiling during the rough-in stages of construction and place the projection screen during the finishing stage.
Mount the Pre-Installation Box using flexible mounting points at the top of the box or from the sides.
Once installed the flange on the case of the Descender Electrol will completely cover the Pre-Installation Box.