| Backdraft damper, vertical or horizontal mount, Model WD-410, 10 In Sq, No Flange, Performance up to 2,500 ft/min | $145.00 | | |
| Backdraft damper, vertical or horizontal mount, Model WD-410, 12 In Sq, No Flange, Performance up to 2,500 ft/min | $150.00 | | |
| Backdraft damper, vertical or horizontal mount, Model WD-410, 16 In Sq, No Flange, Performance up to 2,500 ft/min | $197.00 | | |
| Backdraft damper, vertical or horizontal mount, Model WD-410, 18 In Sq, No Flange, Performance up to 2,500 ft/min | $204.00 | | |
| Backdraft damper, vertical or horizontal mount, Model WD-410, 24 In Sq, No Flange, Performance up to 2,500 ft/min | $280.00 | | |
| Backdraft damper, vertical or horizontal mount, Model WD-410, 30 In Sq, No Flange, Performance up to 2,500 ft/min | $399.00 | | |
| Backdraft damper, vertical or horizontal mount, Model WD-410, 8 In Sq, No Flange, Performance up to 2,500 ft/min | $143.00 | | |
| Cam style access door, 10 In Sq | $39.00 | | |
| Cam style access door, 12 In Sq | $42.00 | | |
| Cam style access door, 14 In Sq | $50.00 | | |
| Cam style access door, 16 In Sq | $57.00 | | |
| Cam style access door, 18 In Sq | $61.00 | | |
