Low Profile Adjustable: The number of tilt legs required in a low profile array depends on the length of the mounting rails. See sizing chart below for complete listing. In low profile arrays, tilt angles depend on the leg length and module length.
High Profile Adjustable: Order one high profile tilt leg kit for each rail kit. In high profile arrays, tilt angle depends on leg and rail lengths. Never use high profile legs with spliced rails or with rails longer than 180".