Flex Ducting

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Fantech FIDT4

Fantech FIDT4

Fantech 25' of Insulated Flexible 4" Round Duct

Our Price: $23.57
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Fantech DBLT4W

Fantech DBLT4W

Fantech Secondary Lint Trap for Dryer Boosting Fan Kits

Our Price: $34.31
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Fantech FIDT6

Fantech FIDT6

Fantech 25' of Insulated Flexible 6" Round Duct

Our Price: $30.97
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Fantech LD10

Fantech LD10

Fantech 10" Duct Silencer

Our Price: $152.79
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Fantech RC6

Fantech RC6

Fantech 6" Duct Roof Cap

Our Price: $67.31
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Fantech LD6

Fantech LD6

Fantech 6" Duct Silencer

Our Price: $87.50
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Fantech LD8

Fantech LD8

Fantech 8" Duct Silencer

Our Price: $98.95
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Hart & Cooley F214 6x25 (51037)

Hart & Cooley F214 6x25 (51037)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 6" x 25'

Regular Price: $35.99
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Fantech LD4

Fantech LD4

Fantech 4" Duct Silencer

Our Price: $67.31
as low as: $62.60

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Hart & Cooley F214 3x25 (557818)

Hart & Cooley F214 3x25 (557818)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 3" x 25'

Regular Price: $26.99
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Fantech RC4

Fantech RC4

Fantech 4" Duct Roof Cap

Our Price: $15.49
as low as: $14.41

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Hart & Cooley F216 6x25 (51325)

Hart & Cooley F216 6x25 (51325)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 6" x 25'

Regular Price: $39.99
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as low as: $26.13

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Fantech FY4

Fantech FY4

Fantech Y-Sheet Metal Adaptor for 4" Duct

Our Price: $21.54
as low as: $20.03

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Hart & Cooley F216 4x25 (51323)

Hart & Cooley F216 4x25 (51323)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 4" x 25'

Our Price: $23.40
as low as: $21.76

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Fantech RC10

Fantech RC10

Fantech 10" Galvanized Steel Roof Cap with Damper Flap

Our Price: $95.58
as low as: $88.89

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Hart & Cooley F218 16x25 (27832)

Hart & Cooley F218 16x25 (27832)

Hart & Cooley R8.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 16" x 25'

Regular Price: $139.99
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as low as: $92.54

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Fantech FC4

Fantech FC4

Fantech 4" Duct Stabilizing Mounting Clamp

Our Price: $13.47
as low as: $12.53

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Fantech FY6

Fantech FY6

Fantech Y-Sheet Metal Adaptor for 6" Duct

Our Price: $28.27
as low as: $26.29

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Hart & Cooley F214 4x25 (51035)

Hart & Cooley F214 4x25 (51035)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 4" x 25'

Regular Price: $28.99
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as low as: $19.25

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Fantech FML8

Fantech FML8

Fantech Fixed Metal Intake/Exhaust Louver for 8" Duct - White

Our Price: $31.64
as low as: $29.43

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Fantech RC8

Fantech RC8

Fantech 8" Galvanized Steel Roof Cap with Damper Flap

Our Price: $78.08
as low as: $72.61

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Fantech FEA4

Fantech FEA4

Fantech 4" Duct Adjustable Round Metal Elbow

Regular Price: $11.99
On Sale: $7.98
as low as: $7.42

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Fantech FIDT8

Fantech FIDT8

Fantech 25' of Insulated Flexible 8" Round Duct

Our Price: $37.70
as low as: $35.06

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Hart & Cooley F214 8x25 (51039)

Hart & Cooley F214 8x25 (51039)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 8" x 25'

Our Price: $29.50
as low as: $27.44

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Fantech FC6

Fantech FC6

Fantech 6" Duct Noise Reduction Mounting Clamps

Our Price: $18.18
as low as: $16.91

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Hart & Cooley UL-181B-FX (11372)

Hart & Cooley UL-181B-FX (11372)

Hart & Cooley Flexible Duct Tape - Silver, 2" x 120 YDS

Regular Price: $17.99
On Sale: $12.60
as low as: $11.72

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Fantech CKR64

Fantech CKR64

Fantech 4" x 6" Duct Coupler

Our Price: $17.06
as low as: $15.87

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Hart & Cooley F214 12x25 (51042)

Hart & Cooley F214 12x25 (51042)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 12" x 25'

Our Price: $43.00
as low as: $39.99

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Fantech IG6

Fantech IG6

Fantech 6" Wire Coil Duct Inlet Guard

Our Price: $5.39
as low as: $5.01

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Hart & Cooley F216 8x25 (51327)

Hart & Cooley F216 8x25 (51327)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 8" x 25'

Our Price: $33.50
as low as: $31.16

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Hart & Cooley F218 14x25 (27831)

Hart & Cooley F218 14x25 (27831)

Hart & Cooley R8.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 14" x 25'

Regular Price: $116.99
On Sale: $83.50
as low as: $77.66

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Fantech FC10

Fantech FC10

Fantech 10" Metal Stabilizing/Mounting Clamps with Neoprene (2/Pack)

Our Price: $21.54
as low as: $20.03

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Fantech FC8

Fantech FC8

Fantech 8" Duct Noise Reduction Mounting Clamps

Our Price: $19.53
as low as: $18.16

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Fantech FIDT10

Fantech FIDT10

Fantech 25' of Insulated Flexible 10" Round Duct

Our Price: $45.77
as low as: $42.57

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Hart & Cooley F216 14x25 (51331)

Hart & Cooley F216 14x25 (51331)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 14" x 25'

Our Price: $60.99
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Hart & Cooley F216 10x25 (51329)

Hart & Cooley F216 10x25 (51329)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 10" x 25'

Our Price: $42.40
as low as: $39.43

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Hart & Cooley F216 9x25 (51328)

Hart & Cooley F216 9x25 (51328)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 9" x 25'

Our Price: $37.00
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Hart & Cooley F216 12x25 (51330)

Hart & Cooley F216 12x25 (51330)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 12" x 25'

Regular Price: $71.99
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Fantech FY644

Fantech FY644

Fantech FY Series Sheet Metal Y-Adapter, 6 x 4 x 4

Our Price: $29.62
as low as: $27.55

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Hart & Cooley F216 7x25 (51326)

Hart & Cooley F216 7x25 (51326)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 7" x 25'

Our Price: $30.70
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Fantech FY664

Fantech FY664

Fantech FY Series Sheet Metal Y-Adapter, 6 x 6 x 4

Our Price: $30.30
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Hart & Cooley F216 5x25 (51324)

Hart & Cooley F216 5x25 (51324)

Hart & Cooley R6.0 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 5" x 25'

Our Price: $25.40
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Fantech FML10

Fantech FML10

Fantech Fixed Metal Intake/Exhaust Louver for 10" Duct - White

Our Price: $42.41
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Hart & Cooley F214 5x25 (51036)

Hart & Cooley F214 5x25 (51036)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 5" x 25'

Regular Price: $28.99
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as low as: $19.16

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Fantech FY866

Fantech FY866

Fantech Metal Y Adaptor, 8 x 6 x 6 for Circular Ducts

Our Price: $34.34
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Hart & Cooley F214 10x25 (51041)

Hart & Cooley F214 10x25 (51041)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 10" x 25'

Regular Price: $50.99
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Fantech FY8

Fantech FY8

Fantech 8" X 8" X 8" Metal "Y" Adaptor

Our Price: $34.34
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Fantech FEA6

Fantech FEA6

Fantech 6" Duct Adjustable Round Metal Elbow

Our Price: $27.95
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Fantech CKR86

Fantech CKR86

Fantech 8" x 6" Sheet Metal Reducer/Increaser

Our Price: $22.38
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Hart & Cooley F214 7x25 (51038)

Hart & Cooley F214 7x25 (51038)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 7" x 25'

Our Price: $25.99
as low as: $24.17

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Fantech IG8

Fantech IG8

Fantech 8" Wire Coil Duct Inlet Guard

Our Price: $7.41
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Smart 630501

Smart 630501

Smart Flow Elbow Flexible Duct Energy Upgrade Kit - 4" - 16"

Regular Price: $19.99
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Hart & Cooley F214 9x25 (51040)

Hart & Cooley F214 9x25 (51040)

Hart & Cooley R4.2 Metalized Jacket Insulated Flexible Air Duct with 2-Ply Black Polyester Core - 9" x 25'

Our Price: $33.10
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Fantech IG4

Fantech IG4

Fantech 4" Wire Coil Duct Inlet Guard

Our Price: $5.39
as low as: $5.01

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54 products Sort by 

How to Select

How to select Flex Ducting

Installing flex ducting in a house is very necessary for safe and easy connection of all air ways and corners of the building. Moreover, flex ducting reduces the number of unnecessary elbows thus increasing the efficiency of the system. Selecting the necessary ducting parts and accessories is always complicated, especially for people who don’t know what to look for. This guide will help you select the best flex ducting supplies for your home.

An essential part of every ducting system is flexible duct. This is the tube that connects all of the inputs and outputs and provides space for air circulation. To know what type of such ducting you need, you have to size the flex work appropriately. Correct calculations will make the air volume flow through the system properly thus providing every room of your house with fresh air.

Square footage of each room is the first detail to calculate. Next step is figuring out the CFM rating that corresponds to the room’s area. CFM is the amount of air that is required per a square meter of the area. This means that to receive proper ventilation, a 50 square foot room will need 50 CFM of air volume. Now, to calculate the flex ducting size, use the online calculator.

When you have specified the ducting size, you may need to calculate its length if you haven’t done it previously. Simply measure the perimeter of the room or the area where the flex ducting will be installed.

The next step in selecting Flex Ducting is deciding which construction material to use. The most common types of duct materials are: vinyl coated flex, fiberglass or galvanized sheet metal. Fiberglass offers better insulation, galvanized metal is perfect for industrial and commercial installations and flex ducting features easy installation.

Selecting the right ducting fittings is crucially important. You need to ensure that such fittings are compatible with the flex ducting and in addition to that provide gap and slot free connection. If the air is slipping through the connections, more energy and money will be spent to push it through the system. To prevent such thing from happening, install your ducting and all of the additional fittings with efficiency in mind.

Special devices, such as fans, air-conditioners and coolers, provide the air circulation through the duct system of the building. To select perfect devices for your particular system, you need to pay attention to their power, safety, control options, design and quality.