Model:CD-101 Parallel Blade, Control, Extr. Alum. up to 3" wg
APPLICATION The Model CD-101(parallel blade) is a rectangular damper with .125 extruded aluminum blades and .081 extruded aluminum frames. It can be built in one section up to 52"w x 72"h. If a larger size is required there will be an automatic multi-section charge for jackshafting.