Dovetail Ductboard Collars: Light Gauge, Low Pressure
| SIZE | |||
| MODEL DB PLAIN | MODEL 100BD W/ DAMPER | MODEL 100BDS W/ DAMPER & SCOOP | |
| 5" | (DB05) | (100BD05) | (100BDS05) |
| 6" | (DB06) | (100BD06) | (100BDS06) |
| 7" | (DB07) | (100BD07) | (100BDS07) |
| 8" | (DB08) | (100BD08) | (100BDS08) |
| 9" | (DB09) | (100BD09) | (100BDS09) |
| 10" | (DB10) | (100BD10) | (100BDS10) |
| 12" | (DB12) | (100BD12) | (100BDS12) |
| 14" | (DB14) | (100BD14) | (100BDS14) |
| 16" | (DB16) | (100BD16) | (100BDS16) |
| 18" | (DB18) | (100BD18) | (100BDS18) |