Product HighlightsMetal-Fab's B-Vent is listed by Underwriters Laboratories for use with approved category 1 gas furnaces, heaters, and boilers. The double wall design enables the product to be used in homes and commercial buildings at close clearance to combustible andincorporates features that make installation quick, easy, and safe.
- Elimination of sharp edges by hemming the flue and casing
- Assembly & disassembly, without tools, using positive twist lock 360º rotation of small diameter fittings using swivel tees, wyes, and elbows
- Space savings inside standard stud walls using oval pipe
California residents: see Proposition 65 Warning
Weight 2.30 Pounds Length 14.30 Inches Width 10.00 Inches Height 25.00 Inches Country of Origin USA Brand Metal-Fab Composition Outer wall is constructed of galvanized steel .018" thinck G90 Steel for sizes 3" to 14" diameter and .024" think G90 for sizes 16" to 30" diameter. The inner wall is constructed of aluminum alloy .012" think for sizes 3" to 8" diameter and .018" thick f Gauge Outer Wall - 26ga, Inner Wall - 30ga Inside Diameter 4" Outside Diameter 4" Size 4" x 24" UL Listed Yes
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