Architectural Louvers, Dampers, Roof Curbs, Actuators, Grilles, Sunshades and more.


Heavy Duty, Flanged, All Steel, up to 10" w.g.


The Model H-420 is a heavy duty flanged frame style industrial control damper with 14 guage galvanized steel blades and frame. This model also has a heavy duty linkage and stainless steel sleeve type bearings. One section can be built up to 48"w x 96"h, larger sizes require a multi-section charge for jackshafting.