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| Finish | : | Black |
| Inside Diameter | : | 4 in |
| Insulation Value | : | R4.2 |
| Length | : | 25 ft |
| Material | : | Polyethylene/Steel/Fiberglass |
| Pressure Rating | : | Positive : 6/Negative : 1 in-WG |
| Series | : | PR-25 |
| Temperature Rating | : | Continuous : -20 - 140/Intermittent : -20 to 200 deg F |
| Vapor Transmission | : | 0.19 Perms |
JPL®, PR25B-04, Duct, Series: PR-25, 4 in ID, 25 ft Length, R4.2 Insulation Value, 0.19 Perms Vapor Transmission, Positive : 6/Negative : 1 in-WG Pressure, Continuous : -20 - 140/Intermittent : -20 to 200 deg F, Polyethylene/Steel/Fiberglass, Black
- 5000 FPM Air Velocity
- 3/8 Oversized core
- Formaldehyde Free
- 14 in Width
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