Metal-Fab - MTF4M6AF - 4" B-Vent Female Adapter

Item: MTF4M6AF
loading availability
Loading price
/ EA


Metal-Fab's Round and Oval Type-B Vent Is Listed By Underwriters Laboratories For Use with Approved Category 1 Gas Furnaces, Heaters, and Boilers. A Category 1 Appliance Operates with A Non-Positive Vent Static Pressure. The Double Wall Design Of B-Vent Enables The Product To Be Used In Homes and Commercial Buildings At Close Clearance To Combustible. Metal-Fab's B-Vent Design Incorporates Features That Make Installation Quick, Easy, and Safe. Some Of Those Features Are:
  • Elimination Of Sharp Edges By Hemming The Flue and Casing.
  • Assembly & Disassembly, Without Tools, Using Positive Twist Lock.
  • 360° Rotation Of Small Diameter Fittings Using Swivel Tees, Wyes, and Elbows.
  • Space Savings Inside Standard Stud Walls Using Oval Pipe.
UL Listed To Mate with Other Specifically Identified and Listed Round Gas Vent, 3"-6" Diameters, Allowing You To Add A New Run Of Metal-Fab B-Vent To An Existing Run Of Common Vent. Metal-Fab 3"-6" Diameter B-Vent Pipe Is Now Standard with Our New Surelock B-Vent Locking System . The Patented Locking System Provides A Secure Lock with Just The Push Of A Tab, and Can Be Easily Disassembled By Pulling The Tab Back Out. Commercial Vent or "Big Vent" Is Available In Round Sizes Of 14" - 30". Big Vent Sections (In 16" - 30" Diameters) Are Joined Together Using Metal-Fab's Quick Connect Locking System.

California residents: see Proposition 65 Warning

Features and Specification

Weight 0.700000
For Use With Metal-Fab B-Vent Products
Package Height 9.300000
Composition Outer wall is constructed of Galvanized Steel .018" thick G90 Steel for sizes 3" to 14" diameter, .024" thick G90 for sizes 16" to 30" diameter, The inner wall is constructed of Aluminum alloy .012" thick for sizes 3" to 8" diameter, .018" thick f
Cubic Measurement 0.084600
Diameter 4"
Dimensional Weight 8.000000
EAN 0622417911993
Gauge Outer Wall - 26ga, Inner Wall - 30ga
Height 6.500000
Inside Diameter 4"
Length 4.500000
Brand Metal-Fab
Package Width 9.800000
Application Type B Gas Vent Systems
UL Listed Yes
UPC 622417911993
Width 5.000000
Package Length 14.300000