Abstract: A hanger for freely seating a flexible duct. The hanger has a proximal end that can be attached to a support structure, such as a beam or joist, and a distal end with a cradle. The cradle includes a near end defining a transition between the cradle and the distal end, and a remote end opposite the near end such that together they define a duct insertion gap between them. The duct insertion gap is greater than the diameter of the flexible duct such that the duct can be freely seated in the cradle. A duct-engaging surface extends between the near and remote ends of the cradle, and is defined by an exaggerated contact area along at least a portion thereof. The extra surface provided by the exaggerated contact area can engage more of the outer wall surface of the flexible duct, thereby distributing the weight of the duct over a larger area and reducing the likelihood of crimping and sagging such that airflow is not adversely effected.

Abstract: A plastic form having two or more sections and a hinged joint therebetween can be folded about the hinged joint and joined together by fastening devices to form a plastic duct connector for heating, ventilation and air conditioning systems.