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Wall Construction
Most stovepipe and gas vent is single or double wall. Double wall stovepipe or gas vent has an open \"air layer\" inbetween the walls.\r\n\r\nClass A Chimney pipe is generally double wall, with a layer of ceramic insulation between the two walls. More expensive triple-wall Class A pipe uses the same ceramic layer, but adds an additional air layer between the second and third walls.
Wall Construction

Pipe Inside Diameter
This can be measured from interior wall to interior wall of the innermost walls in a venting component. Typically, this measurement will coincide with the flue size, in systems where no increasers, or decreasers are used.\r\n
Pipe Inside Diameter

  • 3 (114)
  • 4 (119)
  • 5 (84)
  • 5.5 (5)
  • 6 (80)
  • 7 (72)
 

Product Type

 

Length

 

Pipe Class

Price

 
3 Inch FasNSeal Special Gas Vent Pipe by Duravent4 Inch FasNSeal Special Gas Vent Pipe by Duravent6 Inch FasNSeal Special Gas Vent Pipe by Duravent8 Inch FasNSeal Special Gas Vent Pipe by Duravent10 Inch FasNSeal Special Gas Vent Pipe by Duravent14 Inch FasNSeal Special Gas Vent Pipe by Duravent
3 Inch Pipe4 Inch Pipe6 Inch Pipe8 Inch Pipe10 Inch Pipe14 Inch Pipe
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FasNSeal - AL29-4C Special Gas Vent


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    • DuraVent FSVL3603 more info

      DuraVent FSVL3603

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 36" Pipe Length

      • Our Price: $67.82
      • You Save: 10%
    • DuraVent FSAVL36-10 more info

      DuraVent FSAVL36-10

      10" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 36" Adjustable Pipe Length

      • Our Price: $242.00
      • You Save: 20%
    • DuraVent FSBS3 more info

      DuraVent FSBS3

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 23 Degree Bird Screen Termination

      • Our Price: $26.99
      • You Save: 10%
    • DuraVent FSVL3604 more info

      DuraVent FSVL3604

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 36" Pipe Length

      • Our Price: $76.65
      • You Save: 10%
    • DuraVent FSAVL36-6 more info

      DuraVent FSAVL36-6

      6" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 36" Adjustable Pipe Length

      • Our Price: $105.33
      • You Save: 19%
    • DuraVent FSELB3003 more info

      DuraVent FSELB3003

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 30 Degree Elbow

      • Our Price: $55.65
      • You Save: 20%
    • DuraVent FSVL1203 more info

      DuraVent FSVL1203

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 12" Pipe Length

      • Our Price: $26.63
      • You Save: 20%
    • DuraVent FSVL3607 more info

      DuraVent FSVL3607

      7" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 36" Pipe Length

      • Our Price: $125.70
      • You Save: 20%
    • DuraVent FSSWRC04 more info

      DuraVent FSSWRC04

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 6" Severe Weather Rain Cap

      • Our Price: $92.68
      • You Save: 9%
    • DuraVent FSVL1204 more info

      DuraVent FSVL1204

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 12" Pipe Length

      • Our Price: $34.22
      • You Save: 9%
    • DuraVent FSVL1805 more info

      DuraVent FSVL1805

      5" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 18" Pipe Length

      • Our Price: $54.18
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    • DuraVent FSVL1807 more info

      DuraVent FSVL1807

      7" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 18" Pipe Length

      • Our Price: $80.30
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    • DuraVent FSAAU4 more info

      DuraVent FSAAU4

      4 Inch FasNSeal Universal Appliance Adapter From the FasNSeal Series

      • Our Price: $34.15
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    • DuraVent FSHDT4 more info

      DuraVent FSHDT4

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - Horizontal Drip Tee

      • Our Price: $60.80
      • You Save: 20%
    • DuraVent FSAVL12 more info

      DuraVent FSAVL12

      12" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 18" Adjustable Pipe Length

      • Our Price: $127.13
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    • DuraVent FSC5 more info

      DuraVent FSC5

      Storm Collar for 5 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $28.16
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    • DuraVent 4FSFLEX-XX more info

      DuraVent 4FSFLEX-XX

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - Custom Pipe Length

      • Our Price: $29.95
      • You Save: 19%
    • DuraVent 8FSFLEX-XX more info

      DuraVent 8FSFLEX-XX

      8" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - Custom Pipe Length

      • Our Price: $59.89
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    • DuraVent FS43R more info

      DuraVent FS43R

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 4" to 3" Reducer

      • Our Price: $54.34
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    • DuraVent FSA-M3 more info

      DuraVent FSA-M3

      3 Inch FasNSeal Crown, Dunkirk & Modine Termination Appliance Adapter From the FasNSeal Series

      • Our Price: $31.44
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    • DuraVent FSELB9003 more info

      DuraVent FSELB9003

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 90 Degree Elbow

      • Our Price: $77.12
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    • DuraVent FSA-MCF6 more info

      DuraVent FSA-MCF6

      6 Inch FasNSeal Cleaver Brooks MCF Series Appliance Adapter From the FasNSeal Series

      • Our Price: $62.18
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    • DuraVent FSVPF8 more info

      DuraVent FSVPF8

      8 Inch Variable Pitch Flashing From the FasNSeal Series

      • Our Price: $122.92
      • You Save: 19%
    • DuraVent FSA-PVC3 more info

      DuraVent FSA-PVC3

      3 Inch FasNSeal PVC to FasNSeal Appliance Adapter From the FasNSeal Series

      • Our Price: $42.18
      • You Save: 19%
    • DuraVent FSA-SWDW12 more info

      DuraVent FSA-SWDW12

      12" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 4" Single-to-Double Wall Adapter

      • Our Price: $152.24
      • You Save: 20%
    • DuraVent FSAAU3 more info

      DuraVent FSAAU3

      3 Inch FasNSeal Universal Appliance Adapter From the FasNSeal Series

      • Our Price: $33.16
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    • DuraVent FSC6 more info

      DuraVent FSC6

      Storm Collar for 6 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $26.78
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    • DuraVent FSC9 more info

      DuraVent FSC9

      Storm Collar for 9 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $40.54
      • You Save: 20%
    • DuraVent FSCN1816 more info

      DuraVent FSCN1816

      18" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 6.4" Termination Cone

      • Our Price: $536.65
      • You Save: 20%
    • DuraVent FSDVWT03 more info

      DuraVent FSDVWT03

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 11" Max Remote Concentric Kit

      • Our Price: $202.01
      • You Save: 19%
    • DuraVent FSELB3004 more info

      DuraVent FSELB3004

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 30" Degree Elbow

      • Our Price: $58.51
      • You Save: 19%
    • DuraVent FSELB4503 more info

      DuraVent FSELB4503

      3" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 45" Degree Elbow

      • Our Price: $65.65
      • You Save: 10%
    • DuraVent FSELB8804 more info

      DuraVent FSELB8804

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 88" Degree Elbow

      • Our Price: $81.00
      • You Save: 10%
    • DuraVent FSELB9004 more info

      DuraVent FSELB9004

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 90" Degree Elbow

      • Our Price: $81.00
      • You Save: 10%
    • DuraVent FSELB9006 more info

      DuraVent FSELB9006

      6" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 90" Degree Elbow

      • Our Price: $116.55
      • You Save: 20%
    • DuraVent FSELB9012 more info

      DuraVent FSELB9012

      12" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 90" Degree Elbow

      • Our Price: $207.25
      • You Save: 19%
    • DuraVent FSFS4 more info

      DuraVent FSFS4

      Firestop Flat Flashing for 4 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $31.84
      • You Save: 12%
    • DuraVent FSFS7 more info

      DuraVent FSFS7

      Firestop Flat Flashing for 7 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $35.29
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    • DuraVent FSC12 more info

      DuraVent FSC12

      Storm Collar for 12 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $52.46
      • You Save: 20%
    • DuraVent FSC4 more info

      DuraVent FSC4

      Storm Collar for 4 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $26.00
      • You Save: 19%
    • DuraVent FSAVL6 more info

      DuraVent FSAVL6

      6" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 18" Adjustable Pipe Length

      • Our Price: $67.37
      • You Save: 19%
    • DuraVent FSAVL9 more info

      DuraVent FSAVL9

      9" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - 18" Adjustable Pipe Length

      • Our Price: $114.02
      • You Save: 20%
    • DuraVent FSAWB03 more info

      DuraVent FSAWB03

      Adjustable Wall Bracket for 3 Inch FasNSeal Vent Pipe From the FasNSeal Series

      • Our Price: $42.41
      • You Save: 19%
    • DuraVent FSRC5 more info

      DuraVent FSRC5

      5" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - Rain Cap

      • Our Price: $114.61
      • You Save: 20%
    • DuraVent FSAAUCDBFP04 more info

      DuraVent FSAAUCDBFP04

      4 Inch FasNSeal Universal Appliance Adapter with Condensate Drain and Back Flow Preventer From the FasNSeal Series

      • Our Price: $126.89
      • You Save: 20%
    • DuraVent FSSWWMK4 more info

      DuraVent FSSWWMK4

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - Severe Weather Wall Mount Kit

      • Our Price: $372.03
      • You Save: 19%
    • DuraVent FSUCD4 more info

      DuraVent FSUCD4

      4" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - Universal Condensate Drain

      • Our Price: $89.46
      • You Save: 10%
    • DuraVent FSUCD6 more info

      DuraVent FSUCD6

      6" Inner Diameter - FasNSeal AL29-4C Special Gas Vent Pipe - Single Wall - Universal Condensate Drain

      • Our Price: $102.84
      • You Save: 20%
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