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- Brand:Â Metal-FabApplicable Standard:Â UL 441, NFPA 54/211Material Thickness:Â 0.012 Inch (Inner Wall), 0.018 Inch (Outer Wall)Type:Â Double Wall, StandardSize:Â 4 InchMaterial:Â Aluminum Alloy (Flue), G90 Galvanized Steel (Casing)Cone Base Size:Â 7.5 InchLower Height:Â 4 InchOverall Base Size:Â 14.63 Inch Length x 14.63 Inch WidthPitch:Â 2/12 to 5/12 Pitch
- Metal-Fab Type B Gas Vent Combines Hemmed Flues and Casings that Maximize Product Durability and Reliability and Minimize Installation Time
- Quick and Easy - B-Flexâ„¢ Eliminates Measuring, Special Adapters and Assembly of Rigid Pipe Length
- Cost Savings - Saves Time and Labor, a Universal Solution to Connecting Appliances to Rigid B-Vent
- Convenience - Ready to Install Right Out of the Box with Factory- Assembled Male and Female Positive Twist-Lock Ends
- Made in USA
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