The S45-1964 dust cover retrofits onto existing Bradley ABS plastic eyewash bowls. Cover protects entire bowl to keep contaminants, dust and debris from the eyewash area. Dust cover swings back and out of the way when push handle is activated Ideal for high dust or contaminant applications Cover is constructed of impact resistant ABS Plastic, Highly Visible Yellow Color. Hinge and bracket made from Stainless Steel Cover dimensions: 10-3/8 in. (264mm) diameter x 3-1/2 in. (89mm) high.