Abstract: A double door astragal is provided which comprises a rigid support member securable to the vertical edge portion of a normally inactive door, a rigid cover member securable in a plurality of positions relative to the rigid support member and mounted on the rigid support member with a U-shaped portion having an outer leg extending into the swinging path of the active door, and a flexible sealing member secured to the rigid support member and extending into the opening formed by the U-shaped portion of the cover member so as to contact the outside surface of the active door when the vertical edge portions of the active and inactive doors are in abutting relation, to provide an adjustable seal against weather.