Peerless ONE-TP-S OneMount Expandable Tilt Wall Mount for 23" to 84" Displays (Silver) (Discontinued by Manufacturer) Positions Low-Voltage Devices Next To 110 Vac Electrical Boxes With Standard Nec Spacing Wall Plate Converts From 19.25 Wide To 43 Wide 3-Plate Configuration Designed For Easy Installation Adapter Brackets Extend From 13.75 To 27.125 Up To 12 Of Horizontal Adjustment After The Screen Is Mounted