Profile: The Leader Dampers & Louvers Division carries a full line of UL classified life safety products including static and dynamic fire dampers, leakage rated smoke dampers, combination fire/smoke dampers, ceiling radiation dampers, air control dampers, & access doors. Louvers include 2", 4", & 6" formed steel and aluminum extruded louvers in various blade styles and performances. Brick vents and shutters are offered as well.