Mullion Plug - Black

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A Mullion is a vertical or horizontal element that forms a division between units of a window or screen, or is used decoratively. When dividing adjacent window units its primary pu rpose is a rigid support to the glazing of the window. Its secondary purpose is to provide structural support to an arch or lintel above the window opening. Full Diameter: 7/8" Inner Diameter: 7/16" Durable Black Plastic Finish Show more