Material ASTM-A653 CS Type B Galvanized Steel G-30 Coating LFQ Chemical Treatment
Assembly Continuous weld longitudinal seam for no air leakage. Meets SMACNA Gauge Standards – 10″ W.G. Static Pressure
Available Options
Gasket Fire Retardant Polyethylene Foam with Double Stick 3M Tape UL94 HF-1
Damper Standard Regulator or Raised Quadrant
Available Raised Quadrants Duro Dyne # 7210 ESO38R-150 3/8″ Standoff Regulator for 1 1/2″ wrap or Duro Dyne # 7206 ESO14R-200 1/4″ for 2″ wrap. Nylon grommets are installed on each side of the collar to reduce air loss.