Cody Assembled Start Collar With Knockout Hole, 551 Series, 9 in Fitting, Steel, Finish: Galvanized, 30 ga Gauge, For Use With: R4.2 and R6 Ductboards
| Series | 551 Series |
| Gauge | 30 ga |
| Material | Steel |
| Finish | Galvanized |
- Factory assembled
- 1 in outside ring
- Knockout holes for damper installation


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