| Diameter | : | 12 x 14.5 in |
| Length | : | 10 ft |
| Material | : | Aluminum |
| R-Value | : | R4.2 |
| Series | : | 1218 Series |
| Vent Duct Shape | : | Round |
The Unico System® Return Air Duct, 1218 Series, Round Vent Duct, 10 ft Length, 12 x 14.5 in Diameter, Aluminum, R-Value: R4.2
- This is an acoustical R4.2 flex duct for the M1218 return air
- It comes in 12 in Dia and 10 ft L
- Tough® aluminized mylar outer wrap
- Spun-bonded nylon and helical wire core
- 1 in fiberglass insulation