A frame has a circumferential slot and a circumferential chamber. Each of a plurality of similarly configured clips has a base and a leg. A screen has an attachment region through the slot and within the chamber. The leg of each clip is in contact with the attachment region of the screen. An elongated flexible spline is located within the chamber in contact with the attachment region of the screen. The clip is adapted to hold the screen in position with respect to the frame until the spline is inserted into the chamber in contact with the attachment region of the screen for securement purposes.