Dynamic fire rated damper (Model 151A or 151B).
Minimum sleeve length 20".
Square cam-lock access door included.
Standard 4" offset from the edge of the sleeve to the fire damper frame.
Picture frame mounting angles included.
| 151A | Damper Size | Collar Size | Door Size | Sleeve Size |
|---|---|---|---|---|
| 151A060604BC | 6" x 6" | 4" | 6" x 6" | 20" |
| 151A080806BC | 8" x 8" | 6" | 6" x 6" | 20" |
| 151A101008BC | 10" x 10" | 8" | 8" x 8" | 20" |
| 151A121210BC | 12" x 12" | 10" | 8" x 8" | 20" |
| 151A141412BC | 14" x 14" | 12" | 10" x 10" | 20" |
| 151A161614BC | 16" x 16" | 14" | 12" x 12" | 22" |
| 151A181816BC | 18" x 18" | 16" | 14" x 14" | 24" |
| 151A202018BC | 20" x 20" | 18" | 16" x 16" | 28" |
| 151A222222BC | 22" x 22" | 20" | 16" x 16" | 28" |
| 151B | Damper Size | Collar Size | Door Size | Sleeve Size |
|---|---|---|---|---|
| 151B060604BC | 6" x 6" | 4" | 6" x 6" | 20" |
| 151B080806BC | 8" x 8" | 6" | 6" x 6" | 20" |
| 151B101008BC | 10" x 10" | 8" | 8" x 8" | 20" |
| 151B121210BC | 12" x 12" | 10" | 8" x 8" | 20" |
| 151B141412BC | 14" x 14" | 12" | 10" x 10" | 20" |
| 151B161614BC | 16" x 16" | 14" | 12" x 12" | 22" |
| 151B181816BC | 18" x 18" | 16" | 14" x 14" | 24" |
| 151B202018BC | 20" x 20" | 18" | 16" x 16" | 28" |
| 151B222222BC | 22" x 22" | 20" | 16" x 16" | 28" |