Trueform’s CMU L-brackets are engineered to provide support for Trueform's concrete sinks that need to be wall-mounted to hollow CMU and other masonry surfaces. These brackets should be affixed to masonry surfaces using the Hilti HIT-HY 270 anchoring system. Our CMU L-brackets will also work as a surface-mount solution for non-masonry walls that have been adequately wood-blocked.