DuraVent 46DVA-CL33 4" x 6-5/8" Inner Diameter - DirectVent Pro Direct Vent Pipe - Double Wall - Co-Linear Masonry Chimney Conversion Kit with Flex

- Item #: BCI1761916

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DirectVent Pro Collection 4" x 6-5/8" Co-Linear Direct Vent Masonry Chimney Conversion Kit with Flex

The DirectVent Pro 4" x 6-5/8" Co-Linear Direct Vent Masonry Chimney Conversion Kit with Flex is a component that is used in a typical venting installation. Use this kit when installing a direct vent co-linear insert into a masonry chimney. This kit includes: a high-wind termination cap, 2 pieces of aluminum flex lengths - one Red (exhaust), and one Green (air intake).


  • Kit Includes: High Wind Termination Cap, (2) Pieces of Aluminum Flex Lengths
  • Red Flex Exhaust Dimensions: 3" x 35'
  • Green Flex Air Intake Dimensions: 3" x 35'
  • Cap Size: 4" x 6-5/8"

DirectVent Pro features tight inner connections for superb performance, with no gaskets or sealants required (unless specified by the appliance manufacturer). All black pipe lengths, pipe extensions, and elbows feature laser-welded outer wall seams for a sleek finish. Low-profile locks and no hems or beads allow for a beautiful product that looks elegant in any interior. DirectVent Pro is a unitized, coaxial venting system designed for use with direct vent gas or propane stoves, heaters, and fireplaces.

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.

Additional DuraVent Links

Our SKU: DuraVent 46DVA-CL33

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

  • DuraVent 46DVA-CL33

*Denotes a finish or option that has been discontinued

DuraVent 46DVA-CL33 Product Specifications

DirectVent Pro Product Catalog
Collection DirectVent Pro
Configuration Kit
Fuel Type Gas, Liquid Propane
Manufacturer Warranty Lifetime Limited
Pipe Class Direct Vent
Pipe Inside Diameter 4
Pipe Shape Round
Product Weight 22
UL Listed Yes
Vent Construction Double Wall
Vent Pipe Size 4 x 6-5/8

Installation Resource Center

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DuraVent 46DVA-CL33 Reviews

  • The description states 3" pipe, which is what I need. However, the title states 4". Can you clarify? Also, will the cap work with an oval fireplace opening?

    A. The Simpson Dura-Vent 46DVA-CL33 is a 4" x 6-5/8" direct vent (pipe within a pipe) pipe conversion kit.
  • Can this be used for pellet stove piping?

    A. The DuraVent DirectVent line should not be used with pellet stoves. You should look to PelletPro for your pipe & venting components.
  • In the spec sheet it says this comes with two 3" flex pipes 35' long each. In features section above it says each pipe is 30" long. Which is correct?


    The DuraVent 46DVA-CL33 includes 35' of pipe, and the exhaust and intakes are 30" long.

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