Window Door Muntin SDL Bars

Divided Lite, Exterior Muntin Bars, sometimes called exterior glazing bars, or SDL Bars. these can be applied to exteriors of door glass, casement and awning windows and fixed units. Muntin bars divide a single window sash or casement into a grid system of small panes of glass, called "lights" (or a lite) SDL is short for simulated divided lights. 7/8" Aluminum Divided Lite Muntin Bar with Tape.