For gas-fueled appliance venting
UL Listed 441 (470°)
Double-wall; air insulated
Alumiunum inner; galvanized steel outer
Snap-Lock™ Design
Made in the U.S.A.| Part # | Description | Ctn Qty | Lbs/Ctn | List Price/Each | List Price/Ctn |
|---|---|---|---|---|---|
| 3x4 | DW Increaser, 3" to 4" | 4 | 1 | -- | -- |
| 3x5 | DW Increaser, 3" to 5" | 4 | 2 | -- | -- |
| 3x6 | DW Increaser, 3" to 6" | 4 | 2 | -- | -- |
| 3x7 | DW Increaser, 3" to 7" | 4 | 3 | -- | -- |
| 3x8 | DW Increaser, 3" to 8" | 4 | 4 | -- | -- |

