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4" x 12" Round Type B Gas Vent Pipe

Item: 4RPX12
MFR: 016105

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B-Vent Features

  • 3” to 12” inner and outer pipe curled together as an integral unit
  • 14” - 30” sizes have a snap-lock coupling system
  • Unique locking band provides 360° turning radius of the pipe and fittings
  • Locking band slides over tabs easily, locks firmly without twisting. Locking tabs hold pipe securely together, can be easily unlocked
  • Reinforced ends– curled bead on end of outer pipe for rigidity and strength
  • Deep Locking Groove assures solid joint and secure lock
  • The 4RPX pipe is UL-listed for installation in a 2x6 wall
  • Corrosion-resistant aluminum inner wall for rapid warm-up
  • Galvanized steel outer pipe for maximum protection
  • Positive Stop—provides proper alignment and positive fit for mating end of pipe or fitting


UPC or Barcode50681344001610
Hazardous MaterialNo
EPA Cert RequiredNo

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