Abstract: A sealing device for movable panels such as doors, windows or the like, the panels being supported by rails and comprising a pivoting member extending from the support rail, the pivoting member has first and second ends and is rotatable between a normal horizontal position and an engagible vertical position. A weighted member is attached to the first end for maintaining the pivoting member in the normal horizontal position. A sealing member extends from the second end, the sealing member is engagible against a side of the panel to seal the same only when the pivoting member is in the vertical position. The pivoting member is only movable and maintainable in the engaged vertical position by a retractable actuator means capable of applying a sufficient force to move the weighted member and maintain the pivoting member in the engaged vertical position.