List of featured suppliers of DUCT COVERS/FRAMES Unfilled on Building Products Index
Duct covers/frames, unfilled are typically rectangular or square in shape and are designed to fit over openings in floors or walls. These covers/frames are made of sturdy materials such as metal or plastic and are constructed with an open grid-like pattern to allow for air flow. They can be used to cover air ducts or any other type of opening that requires ventilation or access. When unfilled, these covers/frames do not contain any insulation or other materials that would block or restrict airflow.