Product Description
These M-D Building Products in swing sill extenders are for TH394 and TH397 style sills. They fit sills 2-Inch deep and 36-Inch wide.
From the Manufacturer
These M-D Building Products in swing sill extenders are for TH394 and TH397 style sills. They fit sills 2-Inch deep and 36-Inch wide.
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