M-D Building Products Heavy Duty Rubber Threshold Seal
Floor-mounted double-compression barrier for uneven floors
The floor-mounted compression barrier for garage floors with surface irregularities, cracks, or sloped aprons that a bottom seal alone cannot fully bridge. Bonds directly to the concrete and creates a raised rubber gasket along the full door width. When the door closes, the bottom seal contacts the threshold rather than bare concrete — the two compression surfaces working together to eliminate every residual gap a single seal cannot address independently.
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