Some door seal weatherstrip may look similar, but all are not created equal. This is a professional grade bulb style door weatherstrip that features a medium duty extruded aluminum carrier and slotted holes for easy adjustment and efficient trouble-free installation. More importantly, the Wright Stuff Silicone Door Weatherstrip's sealing gasket is made of a 100% silicone rubber sealing gasket. The silicone rubber bulb sealing gasket offers excellent weathering characteristics, resilience, ultra violet resistance and low temperature flexibility in extreme temperatures down to - 67° F. AM Conservation Group, Inc. specializes in weatherization, water and energy efficiency products for the professional and consumer alike. Color: Grays/Grays.