14″ – 24″
22 gauge, 3/8″ square rod and H.D. Quadrants with stiffener brake
26″ – 30″
20 gauge, 3/8″ square rod and H.D. Quadrants with stiffener brake
Standoff Quadrants and End Bearings also available.
Heavy Duty Volume Damper for Spiral Pipe or Ductwork Systems.