The present invention relates to a termination fitting that is mountable adjacent to, but independent of, and before installation of, the soffit. The termination fitting has a mounting bracket, a vent body, a damper assembly and a diffuser. The mounting bracket has a base attachable to a vertical surface and a retainer that can have a generally arc shaped outer wall. The vent body has an inlet end and an outlet end. The outlet end is attachable to the retainer in a rotatable and lockable manner. The damper assembly is connected to the inlet end of the vent body and has a damper housing and a damper. The damper housing has a face that is held in an inclined place to hold the damper in the inclined plane when in a resting position. The diffuser is rotatable relative to the vent body.
One version of the invention is a low-resistance, discharge-vent soffit frame. The inventive frame is deployed as part of a ventilation system in which air is discharged outside a building, such as a home. The frame includes a hollow connector having an intake opening and an output opening, through which air is directed to the home's exterior. The discharge-vent soffit frame typically includes two adjustable members—one on either side of the hollow connector—that attach between the eaves and side of a building. A low-resistance, discharge-vent soffit frame of the present invention is installed before, not after, a soffit is installed between the eaves of a building and the building side from which the eaves project.