Metalbest AF4-BVA Aluminum 4" B-Vent to Aluminum Flex Adapter

- Item #: BCI1130591

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4" B-Vent to Aluminum Flex Adapter

Adapter to transition from all brands of Listed Type B Gas Vent to Flexible Liner.


  • Materials: Aluminum 3003, 2-ply (0.005" each)
  • Fuels: Gas
  • Temperature: 470 degrees F
  • UL Listed: UL 1777
  • Warranty: Lifetime Limited Warranty

Additional Metalbest Links

Our SKU: Metalbest AF4-BVA

This product is listed under the following manufacturer number(s):

  • Metalbest 174086

*Denotes a finish or option that has been discontinued

Metalbest 174086 Product Specifications

Configuration Adapter
Fuel Type Gas
Manufacturer Warranty Lifetime Limited
Material Aluminum
Pipe Class Flexible Liner
Pipe Inside Diameter 4
Pipe Shape Round
UL Listed Yes
Vent Construction Single Wall
Vent Pipe Size 4

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