Not 90 Degrees, way off. Cut off and re-drill holes to square are up.Defective design, does not open even close to 90 degrees, way off. Leans AC into the wall at the top. It takes a few hours to cut off the ends, square up and drill new holes, go get 8 new short 5/16 bolts and nuts and washers, paint the cut parts and drilled holes a couple of times and reassemble. After you square up the bracket it is usable.
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