Ships in 24x24x23 inch pkg; 28 lbs
Sound attenuator flexible duct 2" inside diameter, 3.5" outside diameter, insulated to R3.3 with 1 vapor barrier; box quantity of 6x 12' lengths (total 72 feet), with our Twist-Fit connectors on each end
For single piece (12 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. x 6 pcs, total 72' |
| Vapor Barrier Qty | Single |
| Certifications | UL-181 |
