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- ItemRoof Vent Kit
- Insulation ValueR 4.2
- Inside Dia.4"
- Wall Thickness1/8"
- Vapor Transmission0.05
- MaterialFlexible Duct
- Length8 ft.
- Max. Air Flow5000 fpm
- Max. Pressure6"WC
- Max. Temp.180 F
- Low Temp. Deg.-20 F
- For Use WithHeating and Cooling Systems
- StandardsUL 181
- Includes4" Diameter Metal Duct Connector, (2) 4" Clamps, 4 to 3" Reducer, 8 ft. Long x 4" Diameter Flexible Metal Ducting, Mfr. No. 636 Roof Jack for 3 and 4" Ducts
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