This variation is essentially a "tilt-up" concrete panel, much like those already in use, only with the unique aqua system built into the back of it. The Gabi® Panel is built to the engineer's design and a layer of the aqua drainage system is placed behind it. A weep hole at the bottom of the panel allows water to escape. Gabi® Panels are easy to install, need little to no maintenance and offer the highest standards in strength, durability and style.