Provides convenient passage for specimen from patient area to laboratory. Mounts in walls 3" to 5.75" thick. Type 304 stainless steel, satin finish. Self-closing doors. Interlocking mechanism prevents both doors from being open at the same time providing a sight barrier. Removable stainless steel tray. Rough wall opening: 11.5"w x 10.88"h. Color(s): Stainless Steel/Black; Overall Width: 12.75"; Overall Depth: 6"; Overall Height: 12.06".