4" Double Wall Round High Wind Vent Top, Galvanized Steel/Aluminum

99650 MFG #: 104802
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  • LONG DESCRIPTION
Used in High Wind Environments; Improves Flue Gas Flow to Prevent Downdrafts
Vent Top; Type Double Wall, Round, High Wind; Size 4"; Material Thickness 28 Gauge; Material Galvanized Steel (Outer), Aluminum (Inner); Applicable Standard NFPA 54/211, UL 441; Application Residential, Light Commercial, Industrial