M-Rock P-Series 5 in. x 20 in. Montgomery Ledge Stone Concrete Stone Veneer (4.9 sq. ft./bx)

M-Rock's patented ms p-series stones are built for beauty, durability and ease of installation. No mortar needed and simple to install - just stack and lock stones together with the built-in rail and the patented concrete locking system, then screw the panel to the wall - it's that easy. Installs with screws into most substrates in any weather; built-in rail provides innovative and integrated air and weep system.