Broan-NuTone UL39 Outlet Box - Plastic Since their beginning in 1932, Broan has pioneered many of the product innovations now established as standards of the industry. Today, Broan carries on the commitment to provide the finest products in the indu stry. Broan-NuTone UL39 Outlet Box - Plastic Features: • Plastic Outlet Box, Fits over sides and bottom of join