Used for supporting condensing units, Hef-T-Brackets (Type 3), just like Hef-T-Brackets (Type 2), feature a cross bar that is attached to a wall, and two L-shaped brackets that are hooked and bolted into place on the cross bar. The condensing unit is mounted onto the L-shaped brackets, and fastened using the bolts and anti-vibration washers provided. The Hef-T-Bracket™ (Type 3) features an innovative locking mechanism called Easy-Fit™. Easy-Fit™ enables the arms to be joined to the uprights in a matter of seconds. A spring-lock automatically secures the joint, preventing the arms from being dislodged accidentally. All brackets are furnished complete with an integral bubble level to make correct installation of the crossbar easier. Diversitech Hef-T-Bracket™ Large Mounting Bracket, Type 3, 21 in Length, For Use With: Mini Split Condenser, Wall Mount, Import