BAviditi BR-24-25 24-Inch by 25-Feet Flexible PVC Duct ReviewbP PP Aviditi BR-24-25 24-Inch by 25-Feet Flexible PVC Duct PSelf extinguishing and fire resistantPExtra thick wearstripPSuper strong, wire-high tensile spring steelPHeat sealed seamsPExcellent for fume removalP