Preferred by professionals and consumers alike, the YDW104 aluminum Weatherstripping is our finest and most popular selling door weatherstripping. The medium-duty extruded aluminum carrier has notched aluminum tops for accurate and trouble-free installation. The gasket tops are bevel-cut at the factory for better fit. The Thermo Plastic Rubber sealing gasket has excellent compression set resistance and the ability to consistently spring back into shape – resulting in significant energy conservation. This feature combined with the ability to seal gaps up to ¾" make the YDW104 aluminum Weatherstripping ideal for all door types no matter how warped or inconsistent. Additional features include: a unique back seal which eliminates the need for caulking, gaskets that remain pliable in subzero temperatures (-40°F), and a seven year limited warranty. Comes individually packaged with installation instructions and screws.