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DuraVent 8687 6" Double Wall Adjustable Black Pipe, 2"-10"

Item #: BCI1761211
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Product Details for the DuraVent 8687

DVL Collection 6" Double Wall Adjustable Black Pipe, 2"-10"

The DVL 6" Double Wall Adjustable Black Pipe, 2"-10" is a component that is used in a typical venting installation. Use to add length to DVL pipe. 6” pipe adds 2”-5” of length, 12” pipe adds 2”-11” of length, when used with rigid sections of pipe. 12” section can be ovalized for oval-to-round appliance connector.


  • Inner Diameter: 6"
  • Adds Length: 2"-10"
  • Pipe Length: 12"
  • Adds Length to DVL Pipe
  • UL Listed

DVL double-wall stove pipe completes the venting system when used with one of DuraVent’s chimney products, such as DuraTech or DuraPlus. DVL’s double-wall, air-insulated design reduces clearances to combustibles from 18” to 6”, the closest clearance to a wall of any connector pipe. DVL improves stove performance by maintaining high flue gas temperatures for a strong, steady draft. Because the inner wall is stainless steel the flue heats up faster, stays hotlonger, minimizes the formation of creosote, and has the same life expectancy as the chimney. Adjustable lengths eliminate the need for cutting or crimping.Required for Manufactured Home installations. See appliance manufacturer's installation instructions.

Looking for Simpson Dura-Vent? You found it! Simpson Dura-Vent has changed their name to DuraVent. DuraVent is a recognized technological leader in the venting industry. Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting.The company's research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro. Scientifically proven materials and unequalled engineering make DuraVent products not only the best choice, or safest choice, but the only choice for professional quality venting products.

Our SKU: DuraVent 8687

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

*Denotes a finish or option that has been discontinued

3 Questions from the Community
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How is this pipe adjusted, do you cut it to length require? It appears to be too tight to slip over my original Dura-vent pipe.

The DuraVent 8687 is a telescoping pipe.

1) What is the O.D. of your 6" double wall chimney pipes? @

The Simpson Dura-Vent 8687 is would have an outer diameter of 7"

1) What is the O.D. of your 6" double wall chimney pipes? 2) How might I anchor to fireclay flue liner (7" I.D.) in order to extend exterior chimney height?

The recommended installation from Simpson Durvavent to anchor a chimney pipe to a clay flue is to use a Transition Anchor Plate. The outer diameter measurement for the Simpson Dura-Vent 8687 Double wall black pipe is 7".

DuraVent 8687 Technical Specs

Configuration Pipe Length
Fuel Type Wood
Length 12
Manufacturer Warranty Lifetime Limited
Material Steel
Pipe Class Stove Pipe
Pipe Inside Diameter 6
Pipe Shape Round
Product Weight 3
UL Listed Yes
Vent Construction Double Wall
Vent Pipe Size 6

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