| Backdraft damper, horizontal mount, Model BD-100, 16 In Sq, No Flange, Performance up to 1,500 ft/min | $101.00 | | |
| Backdraft damper, horizontal mount, Model BD-100, 12 In Sq, No Flange, Performance up to 1,500 ft/min | $89.00 | | |
| Backdraft damper, horizontal mount, Model BD-100, 10 In Sq, No Flange, Performance up to 1,500 ft/min | $85.00 | | |
| Back Draft Damper WD-100 8"X8" | $63.00 | | |
| Back Draft Damper WD-100 24"X24" | $177.00 | | |
| Back Draft Damper WD-100 22"X22" | $169.00 | | |
| Back Draft Damper WD-100 18"X18" | $151.00 | | |
| Back Draft Damper WD-100 16"X16" | $157.00 | | |
| Back Draft Damper WD-100 14"X14" | $110.00 | | |
| Back Draft Damper WD-100 12"X12" | $98.00 | | |
| Back Draft Damper WD-100 10"X10" | $99.00 | | |
| Automatic Balancing Damper 6 | $88.00 | | |
