mullion cover

A loose piece of metal trim which screws or snaps in place on the interior side of the mullion of a window.

References in periodicals archive ?

Following the launch of the industrys first formaldehyde free perimeter fire containment system, Owens Cornings lifesafety leadership continues with the introduction of its newest innovation, the patented Owens Corning Thermafiber Mullion Cover bracket.

United States : Owens Corning Introduces New Solutions at AIA Conference on Architecture

A standard dark bronze color was selected for the new aluminum windows, which will complement the original stainless steel mullion covers.