Ships in 15x15x15 inch pkg; 9 lbs
Sound attenuator flexible duct 2" inside diameter, 3.5" outside diameter, insulated to R3.3 with 1 vapor barrier; 1x 12' length with our Twist-Fit connectors on each end
For 6-piece (72 feet) see
| Duct Size | 2.0" |
| Duct Shape | Round |
| Material | Multiple |
| Flex or Rigid Duct | Flexible |
| R-Value | R3.3 |
| Duct Connection Type | Twist-Fit System |
| Brand | Unico |
| Duct OD | 3.5" |
| Duct Length | 12 ft. |
| Vapor Barrier Qty | Single |
| Certifications | UL-181 |
