| Control Damper - VCD-23 10"X10" | $151.00 | | |
| Control Damper - VCD-23 12"X12" | $151.00 | | |
| Control Damper - VCD-23 -36"X24" | $253.00 | | |
| Control Damper - VCD-23 -36"X36" | $359.00 | | |
| Control Damper - VCD-23 8"X8" | $151.00 | | |
| Control Damper Extension Pin Kit - 1/2" Shaft | $59.00 | | |
| Control Switch, Minimum Ventilation, Product # 876265 | $209.00 | | |
| Curb Extension -Vented 18.5"X18.5" | $375.00 | | |
| Curb Extension -Vented 21.5"X21.5" | $300.00 | | |
| Curb Extension -Vented 29.5"X29.5" | $399.00 | | |
| Curb Extension -Vented 33.5"X33.5" | $394.00 | | |
| Damper Tray, Accommodates 10 In Damper installed in Roof Curb Model GPI-17 | $16.00 | | |
