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Broan Ducting

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Duct Size
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Duct Size refers to the size (diameter) of the piping required for installation. If you have an existing unit you are replacing, it is suggested that you match your replacement with the current duct size to simplify your new installation.

Type
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This is the designated configuration of a ducting product and often describes its main function. Certain pieces are required to complete a system to code; if you aren't sure what you need, give us a call.

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Broan

Today Broan leads the industry with new innovative ventilation products. With fresh, superior designs and a wide selection of products for your home, you can be confident that a Broan product is right for your home.


Air King

It's not every day a ventilation manufacturer can make a difference in the way you live. But, for over 40 years Air King has been developing outstanding products and reputation! With high expectations to meet customer needs, Air King has proven to be a quality choice.

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The material selected here will be the primary raw material of which your item will be composed from. Specific codes and applications may require certain materials to be used; if you aren't sure what you need, give us a call.

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  • Broan 636

    3" or 4" Round Duct Steel Roof Cap with Backdraft Damper

    • Material: Steel
    • Width: 10.25
    • Height: 4.375
    • $17.50
  • Broan 634M

    Steel Roof Cap for 6" Round Ducting with Backdraft Damper

    • Material: Steel
    • Width: 14.5
    • Height: 6.625
    • $34.65
  • Broan 843BL

    6" Round Duct Black Wall Cap with Damper

    • Material: Steel
    • Width: 9
    • Height: 9
    • $31.31
  • Broan 634

    Steel Roof Cap for 3-1/4" x 10" up to 8" Round Ducting with Backdraft Damper

    • Duct Size: 3-1/4" x 10"
    • Material: Steel
    • Width: 14.5
    • Height: 6.625
    • $28.36
  • Broan 641

    6" Round Duct Aluminum Wall Cap with Damper

    • Material: Aluminum
    • Length: 9
    • Width: 9
    • $37.20
  • Broan 636AL

    3" or 4" Round Duct Aluminum Roof Cap with Backdraft Damper

    • Material: Aluminum
    • Width: 10.25
    • Height: 4.375
    • $22.04
  • Broan 441

    10" Round Duct Wall Cap with Gravity Damper

    • Material: Steel
    • Width: 13
    • Height: 13
    • $57.24
  • Broan 643

    8" Round Duct Aluminum Wall Cap with Damper

    • Material: Aluminum
    • Width: 12.5
    • Height: 13
    • $50.33
  • Broan 418

    10" Round Duct Adjustable Elbow

    • Height: 13.25
    • $24.49
  • Broan 437

    High Capacity Black Steel Roof Cap with Built-In Backdraft Damper

    • Duct Size: 6" x 12-5/8"
    • Material: Steel
    • Width: 27.25
    • Height: 9.25
    • $92.07
  • Broan 649

    3-1/4" x 10" Duct Aluminum Wall Cap with Damper

    • Duct Size: 3-1/4" x 10"
    • Material: Aluminum
    • Width: 12.75
    • Height: 5.625
    • $25.86
  • Broan 647

    7" Round Duct Aluminum Wall Cap with Damper

    • Material: Aluminum
    • Width: 9
    • Height: 9
    • $46.07
  • Broan 639

    3-1/4" x 10" Duct Black Wall Cap with Damper

    • Duct Size: 3-1/4" x 10"
    • Material: Steel
    • Width: 12.75
    • Height: 5.625
    • $19.07
  • Broan 411

    3-1/4" x 10" to 6" Round Duct Transition

    • Duct Size: 3-1/4" x 10"
    • Width: 10
    • Height: 9
    • $16.07
  • Broan 612

    12" Round Duct Aluminum Roof Cap for Flat Roofs

    • Duct Size: 12" Round
    • Material: Aluminum
    • Length: 20
    • Width: 20
    • Height: 14.5
    • $86.59
  • Broan 644

    Aluminum Roof Cap for 3-1/4" x 10" up to 8" Round Ducting with Backdraft Damper

    • Duct Size: 3-1/4" x 10"
    • Material: Aluminum
    • Width: 14.5
    • Height: 6.625
    • $41.63
  • Broan 646

    6" Round Duct White Louvered Wall Cap

    • Material: Synthetic
    • Width: 8
    • Height: 8
    • $27.65
  • Broan DT6W

    6" x 25ft. Round Insulated Flexible Ducting

    • Length: 300
    • $35.59
  • Broan 611

    8" Round Duct Aluminum Roof Cap for Flat Roof Installation

    • Material: Aluminum
    • Length: 15
    • Width: 15
    • Height: 9.875
    • $47.47
  • Broan DT4W

    4" x 25ft. Round Insulated Flexible Ducting

    • Length: 300
    • $32.05
  • Broan WC638

    3-1/4" x 14" Duct Wall Cap

    • Duct Size: 3-1/4" x 14"
    • Material: Steel
    • Width: 16.5
    • Height: 6
    • $52.20
  • Broan 611CM

    8" Round Duct Aluminum Roof Cap for Curb Mount

    • Material: Aluminum
    • Length: 15
    • Width: 15
    • Height: 9.875
    • $55.73
  • Broan 413

    3-1/4" x 10" to 8" Round Duct Transition

    • Duct Size: 3-1/4" x 10"
    • Width: 10
    • Height: 9
    • $19.67
  • Broan 412H

    3-1/4" x 10" to 7" Round Duct Transition

    • Duct Size: 3-1/4" x 10"
    • Length: 3.25
    • Width: 10
    • Height: 9
    • $17.27
  • Broan 419

    6" Round Duct Adjustable Elbow

    • Height: 9.25
    • $11.58
  • Broan 641FA

    6" Round Duct Aluminum Wall Cap without Damper

    • Material: Aluminum
    • Length: 9
    • Width: 9
    • $32.86
  • Broan 421

    10" Vertical Discharge In-Line Damper

    • Function: Damper
    • Gauge: 24
    • Diameter: 10
    • Configuration: Duct
    • Duct Diameter: 10
    • Country Of Origin: USA
    • $27.45
  • Broan 423

    4-1/2" x 18-1/2" to 10 Round Duct Transition

    • LoSone Collection
    • Duct Size: 4-1/2" x 18-1/2"
    • Material: Galvanized Steel
    • Width: 18.5
    • Height: 11.25
    • $35.19
  • Broan 427

    4-1/2" x 18-1/2" to 10" Round Thin Wall Horizontal Transition

    • Duct Size: 4-1/2" x 18-1/2"
    • Width: 18.5
    • Height: 6
    • $37.79
  • Broan BP87

    7" Vertical Discharge Damper (Package of 3)

    • Function: Discharge
    • Configuration: Damper
    • Duct Diameter: 7
    • Country Of Origin: USA
    • $9.99
  • Broan DT6C

    6" x 25ft. Non-Insulated Round Flexible Ducting

    • Length: 300
    • $28.49
  • Broan 613

    12" Round Duct Wall Cap With Backdraft Damper

    • Material: Aluminum
    • Width: 15
    • Height: 14.5
    • $55.73
  • Broan 643FA

    Broan-Nutone 643FA Aluminum Fresh Air Inlet Wall Cap for 8

    • Material: Aluminum
    • Width: 12.5
    • Height: 13
    • $45.99
  • Broan 428

    3-1/4" x 10" Vertical Elbow

    • Duct Size: 3-1/4" x 10"
    • Length: 10
    • Width: 3.25
    • Height: 5.25
    • $19.90
  • Broan 472

    10" to 8" Round Duct Transition with Damper

    • Height: 7.375
    • $23.88
  • Broan T460

    3-1/4" x 14" to 7" Round Duct Transition

    • Duct Size: 3-1/4" x 14"
    • Length: 14
    • Width: 3.25
    • Height: 8.625
    • $20.88
  • NuTone CVLD6

    6" Sleeve With Damper

    • Function: Damper, Sleeve
    • Diameter: 6
    • Configuration: Duct
    • Duct Diameter: 6
    • Country Of Origin: USA
    • Product Weight: 0.3
    • $31.01
  • Broan T461

    3-1/4" x 14" to 3-1/4" x 10" Ducting Transition

    • Duct Size: 3-1/4" x 10", 3-1/4" x 14"
    • $27.58
  • Broan 459

    3-1/4" x 14" to 8" Round Transition

    • Duct Size: 3-1/4" x 14"
    • Width: 3.25
    • Height: 8.75
    • $26.64
  • Broan WVK2A

    4" Round Duct Wall Ducting Kit for Bathroom Ventilation Fans

    • Function: Kit
    • Configuration: Duct
    • Duct Diameter: 4
    • Country Of Origin: USA
    • Product Weight: 1.2
    • $20.03
  • NuTone CVLD4

    4" Sleeve With Damper

    • Function: Damper, Sleeve
    • Diameter: 4
    • Configuration: Duct
    • Duct Diameter: 4
    • Country Of Origin: USA
    • Product Weight: 0.1
    • $29.96
  • Broan T81212

    8" x 12" to 12" Round Duct Transition

    • $44.30
  • Broan 429

    3-1/4" x 10" Horizontal Elbow

    • Duct Size: 3-1/4" x 10"
    • Length: 10
    • Width: 3.25
    • Height: 11.75
    • $27.37
  • Broan 431

    3-1/4" x 10" Long Eave Elbow

    • Duct Size: 3-1/4" x 10"
    • Length: 10
    • Width: 11
    • Height: 9.25
    • $35.70
  • Broan RVK1A

    4" Diameter Roof Ducting Kit

    • Function: Kit
    • Configuration: Duct
    • Duct Diameter: 4
    • Country Of Origin: USA
    • $37.60
  • Broan 414

    8" to 10" Round Duct Transition

    • Length: 7.5
    • Height: 7.5
    • $29.13
  • Broan 430

    3-1/4" x 10" Short Eave Elbow

    • Duct Size: 3-1/4" x 10"
    • Length: 10
    • Width: 7.625
    • Height: 7.625
    • $35.28
  • Broan 981L

    8" Round Duct Intake

    • $24.28

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  • × Shipping Rates & Methods

    The cost to ship items varies by item, shipment and shipping option.

    Free Ground Shipping on Orders Over $49

    Standard ground shipping transit time is 5-7 business days.

    * This offer excludes deliveries made to Alaska and Hawaii.

    Free Freight Shipping on Orders Over $1500

    Curb side delivery (also called freight or "LTL" shipping) is reserved for large, heavy, or oversized items like chandeliers, bathtubs, shower doors, etc. Items are palletized and loaded onto a large truck for shipment, and delivered to your curb by scheduled appointment. Transit time is 7-10 business days.

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