| Backdraft damper, vertical mount, Model BD-330, 10 In Sq, No Flange, Performance up to 1,500 ft/min | $114.00 | | |
| Backdraft damper, vertical mount, Model BD-330, 12 In Sq, No Flange, Performance up to 1,500 ft/min | $122.00 | | |
| Backdraft damper, vertical mount, Model BD-330, 14 In Sq, No Flange, Performance up to 1,500 ft/min | $132.00 | | |
| Backdraft damper, vertical mount, Model BD-330, 16 In Sq, No Flange, Performance up to 1,500 ft/min | $144.00 | | |
| Backdraft damper, vertical mount, Model BD-330, 18 In Sq, No Flange, Performance up to 1,500 ft/min | $160.00 | | |
| Backdraft damper, vertical mount, Model BD-330, 8 In Sq, No Flange, Performance up to 1,500 ft/min | $103.00 | | |
| Backdraft damper, vertical mount, Model BD-330, 9 In Sq, No Flange, Performance up to 1,500 ft/min | $114.00 | | |
| Backdraft damper, vertical mount, Model WD-320, 10 In Sq, Flange on Discharge, Performance up to 2,500 ft/min | $153.00 | | |
| Backdraft damper, vertical mount, Model WD-320, 12 In Sq, Flange on Discharge, Performance up to 2,500 ft/min | $153.00 | | |
| Backdraft damper, vertical mount, Model WD-320, 14 In Sq, Flange on Discharge, Performance up to 2,500 ft/min | $181.00 | | |
| Backdraft damper, vertical mount, Model WD-320, 16 In Sq, Flange on Discharge, Performance up to 2,500 ft/min | $172.00 | | |
| Backdraft damper, vertical mount, Model WD-320, 18 In Sq, Flange on Discharge, Performance up to 2,500 ft/min | $181.00 | | |
