Endura Products manufactures entry-door component systems that improve door construction, door installation and long-term performance in the home. Endura s components include doorsills, mull packs, astragals, weather seals and doorframe components. These products are designed to improve functionality, maximize the seal between the door and the opening and reduce air and water infiltration. They re sold by authorized dealers throughout the United States. Endura also offers custom engineering of components systems. Endura Products is headquartered in Colfax, N.C.