Description
Sheet Metal Gas Vent
Connector; Type Double Wall,
Flexible, Air Insulated; Size
3 Inch; Length 24 Inch;
Material Thickness 0.012 Inch
(Inner), 0.018 Inch (Outer);
Material Aluminum (Inner), G90
Galvanized Steel (Outer);
Applicable Standard UL 441,
NEPA 54/211; Used On Type B
Gas Vent