Da-Lite's Mounting and Extension Brackets Use for convenient mounting to extend screen from wall to avoid obstacles such as chalkboards. Model No. 23 Adjusts from 10" - 24". Model No. 11 Extends screen from wall 10" or 14". Non-adjustable. Model No. 6 Extends screen from wall 6". Non-adjustable. Extension wall brackets are only to be used with screens weighing 75 pounds or less.
