Ships in 26x26x33 inch pkg; 36 lbs
For 1-piece (12 feet) see
Sound attenuator flexible duct, 2" inside diameter, 4" outside diameter insulated to R4 with 2 vapor barriers; quantity of 6x 12' lengths with our Twist-Fit connectors on each end
| Duct Size | 2.0" |
| Duct Shape | Round |
| Material | Multiple |
| Flex or Rigid Duct | Flexible |
| R-Value | R4.2 |
| Duct Connection Type | Twist-Fit System |
| Brand | Unico |
| Duct OD | 4" |
| Duct Length | 12 ft. |
| Vapor Barrier Qty | Double |
| Certifications | UL-181 |
