This wall drain is a visually pleasing way to install drains in retaining walls- because you’ll barely notice it. The vertical orientation is hidden in between blocks so you don’t have to install drain covers or spend time cutting circular holes.
Installation is easy, and the drain can be modified for use with blocks 8” and under. The drain sits comfortably in a slot 1 ⅜” wide. It is 14” long from front to back.