FSR is Proud to Introduce the Masonry Wall In Wall Box Solution!! The PWB-CMU8 is the first dedicated flat panel project box engineered for installation in 8” block walls for your education and commercial facilities. The all-metal CMU8 is designed to replace the front of one block to create an attractive surface with no visible jagged block edges once painted. With its 1.5” KOs for conduit centered on the opening in the most common two-hole CMU blocks and its included construction cover, your design and installation are a breeze. Inside the box are two 2-gang compartments facing the middle. These compartments are convertible to a single gang with the provided block-off plates; they are also removable for installing active brick receivers and accommodate standard electrical plates. The gang compartments are over-sized to allow for extra service loops and cable storage and with a depth of 3.25” to allow for the largest of the active electronic wall-plates Patent Pending!