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| Finish | : | G90 Galvanized |
| Length | : | 3-1/4 in |
| Material | : | 24 ga Steel |
| Mounting Type | : | Vertical |
| Series | : | RSK |
| Size | : | 4 in |
Systemair Backdraft Damper, Series: RSK, 4 in Size, 24 ga Steel, G90 Galvanized, Vertical Mounting, 3-1/4 in L
- The 2-blades are spring-loaded
- Every damper is built with performance in mind
- 3/32 in Dia brass central rod
- Stainless steel torsion spring
- EPBM synthetic rubber gasket