Duct Coupling(237)
Uses item details. Price when purchased online
Repa Market 4" Inch Pack of 2 Duct Connector Flange - Plastic Straight Pipe Flange for Heating, Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint From $9.95

Sponsored
From$995
Repa Market 4" Inch Pack of 2 Duct Connector Flange - Plastic Straight Pipe Flange for Heating, Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint
5 out of 5 stars
Best seller, Repa Market 6” Inch Plastic 90 Degree Elbow - White Round Ducting Pipe Connector From $8.06
Best seller

Sponsored
From$806
Repa Market 6” Inch Plastic 90 Degree Elbow - White Round Ducting Pipe Connector
4.4 out of 5 stars
Rollback, Uxcell 7.1" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long $31.12 Was $38.99
Rollback

Sponsored
Now$3112
current price Now $31.12, Was $38.99$38.99
Uxcell 7.1" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long
Uxcell 6" Vent Duct Connector Metal Flange Fitting Duct Air Tight Couplings Vent Extension with Flange From $21.09

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From$2109
Uxcell 6" Vent Duct Connector Metal Flange Fitting Duct Air Tight Couplings Vent Extension with Flange
Repa Market 6" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating, Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint From $9.95

3 options
Available in additional 3 optionsFrom$995
Repa Market 6" Inch Duct Connector Flange - Plastic Straight Pipe Flange for Heating, Cooling - Inlet Outlet Ventilation System - Ducting Coupling Wall Plate - Assembly Joint
5 out of 5 stars
Uxcell 2Pcs 6" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long $23.09

$2309
current price $23.09Uxcell 2Pcs 6" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long
Repa Market 3" up to 6" Inch Duct Reducer-Increaser - Plastic Pipe Connector, Adapter From $7.95

2 options
Available in additional 2 optionsFrom$795
Repa Market 3" up to 6" Inch Duct Reducer-Increaser - Plastic Pipe Connector, Adapter
3.7 out of 5 stars
Clearance, 2 Pcs 3 Inches 4 Inches Round Duct Connector Metal Ventilation Pipe Coupler Galvanized Steel HVAC Duct Coupling for Dryer Vent Pipe $12.72 Was $14.29
Clearance

Now$1272
current price Now $12.72, Was $14.29$14.29
2 Pcs 3 Inches 4 Inches Round Duct Connector Metal Ventilation Pipe Coupler Galvanized Steel HVAC Duct Coupling for Dryer Vent Pipe
Uxcell 6" ID-5.6" OD Stainless Steel Stove Pipe Reducer Connector 2 Pcs , Exhaust Duct Increaser Reducer, Round Pipe Coupler Fitting, for Wood Stoves Fireplaces Camping, Silver $36.09

$3609
current price $36.09Uxcell 6" ID-5.6" OD Stainless Steel Stove Pipe Reducer Connector 2 Pcs , Exhaust Duct Increaser Reducer, Round Pipe Coupler Fitting, for Wood Stoves Fireplaces Camping, Silver
EXHUMKY Round Duct Coupling with Corrosion Resistant Galvanized Steel for Warehouse Ventilation Systems $22.32

$2232
current price $22.32EXHUMKY Round Duct Coupling with Corrosion Resistant Galvanized Steel for Warehouse Ventilation Systems
Uxcell Straight Copper Coupling Fittings 5/16" ID Welding Joint for HVAC Air Conditioner with Rolled Tube Stop Sweat Ends 5Pcs From $9.49

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From$949
Uxcell Straight Copper Coupling Fittings 5/16" ID Welding Joint for HVAC Air Conditioner with Rolled Tube Stop Sweat Ends 5Pcs
4.2 out of 5 stars
Repa Market 3" up to 6" Inch Duct Reducer-Increaser - Plastic Pipe Connector, Adapter From $7.95

Sponsored
From$795
Repa Market 3" up to 6" Inch Duct Reducer-Increaser - Plastic Pipe Connector, Adapter
3.7 out of 5 stars
Uxcell 4" Duct Connector Metal Duct Coupling Vent Coupler Dryer Pipe Coupling

4 options
Available in additional 4 optionsUxcell 4" Duct Connector Metal Duct Coupling Vent Coupler Dryer Pipe Coupling
5 out of 5 stars
AC Infinity Noise Reduction Clamps 6-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC $16.99

$1699
current price $16.99AC Infinity Noise Reduction Clamps 6-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC
5 out of 5 stars
Imperial Oval to Round Ducting Adapter - Metal Connector - 1 Pack, 6 In $27.67

$2767
current price $27.67Imperial Oval to Round Ducting Adapter - Metal Connector - 1 Pack, 6 In
2.5 out of 5 stars
Roylvan Flexible & Safe Magnetic Dryer Vent Coupling Kit, 4, Dryer Vent Coupling Pipe Fittings & Couplers, ,15 Piece $27.99 Was $35.99

Now$2799
current price Now $27.99, Was $35.99$35.99
Roylvan Flexible & Safe Magnetic Dryer Vent Coupling Kit, 4, Dryer Vent Coupling Pipe Fittings & Couplers, ,15 Piece
5 out of 5 stars
Uxcell 3.9" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long $17.39

$1739
current price $17.39Uxcell 3.9" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long
Unique Bargains Galvanized Iron Duct Coupling for HVAC Exhaust 150mm/6" From $20.19

5 options
Available in additional 5 optionsFrom$2019
Unique Bargains Galvanized Iron Duct Coupling for HVAC Exhaust 150mm/6"
Unique Bargains Galvanized Iron Duct Coupling for Ventilation Systems 100mm/4"

Unique Bargains Galvanized Iron Duct Coupling for Ventilation Systems 100mm/4"
2 Pcs Galvanized Steel Duct Connector Set, 3" & 4" Round Vent Pipe Coupler, Rigid Sheet Metal HVAC Coupling Adapter for Dryer Vent and Exhaust Systems $13.69

$1369
current price $13.692 Pcs Galvanized Steel Duct Connector Set, 3" & 4" Round Vent Pipe Coupler, Rigid Sheet Metal HVAC Coupling Adapter for Dryer Vent and Exhaust Systems
VEVOR Ducting Hose, 25ft PVC Flexible HVAC Duct Hosing for 10 Inch Utility Blower Exhaust Fan $36.90

Sponsored
$3690
current price $36.90VEVOR Ducting Hose, 25ft PVC Flexible HVAC Duct Hosing for 10 Inch Utility Blower Exhaust Fan
Repa Market 4" Inch Plastic White 3 Way T Joint - Duct Splitter, Round Duct Hose Connector $8.95

Sponsored
$895
current price $8.95Repa Market 4" Inch Plastic White 3 Way T Joint - Duct Splitter, Round Duct Hose Connector
4.7 out of 5 stars
Uxcell 3.5" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long $14.29

$1429
current price $14.29Uxcell 3.5" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long
Uxcell 4" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 3.2" Long $15.49

$1549
current price $15.49Uxcell 4" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 3.2" Long
Uxcell 5" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long $15.59

$1559
current price $15.59Uxcell 5" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long
Best seller, Repa Market 4” Inch Plastic 90 Degree Elbow - White Round Ducting Pipe Connector From $8.06
Best seller

3 options
Available in additional 3 optionsFrom$806
Repa Market 4” Inch Plastic 90 Degree Elbow - White Round Ducting Pipe Connector
4.4 out of 5 stars
COSMOBETTY Plated Silver Air Duct Coupler, Corrosion Resistant Galvanized Steel for Commercial Ventilation Use $12.36

$1236
current price $12.36COSMOBETTY Plated Silver Air Duct Coupler, Corrosion Resistant Galvanized Steel for Commercial Ventilation Use
Uxcell 2.3" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long $12.49

$1249
current price $12.49Uxcell 2.3" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long
Uxcell 8" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long $22.78

$2278
current price $22.78Uxcell 8" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long
Uxcell 6" Vent Duct Connector Metal Flange Fitting Duct Air Tight Couplings Vent Extension with Flange

2 options
Available in additional 2 optionsUxcell 6" Vent Duct Connector Metal Flange Fitting Duct Air Tight Couplings Vent Extension with Flange
Repa Market 6" to 5" Round Plastic Duct Reducer - PVC Pipe Increaser, HVAC Exhaust, Intake From $7.95

Sponsored
From$795
Repa Market 6" to 5" Round Plastic Duct Reducer - PVC Pipe Increaser, HVAC Exhaust, Intake
ALORAIR Dehumidifier Aluminum foil Inlet Duct with a Diameter of 12 inches and 13 feet Long (12 inches) $89.00

Sponsored
$8900
current price $89.00ALORAIR Dehumidifier Aluminum foil Inlet Duct with a Diameter of 12 inches and 13 feet Long (12 inches)
Uxcell Duct Connector (6") - Flexible Canvas Female Fit Air Duct Vibration Noise Reducing Ducting Coupler Pipe Fitting Coupling for HVAC Ventilation Exhaust Fan Vent Systems, Green $15.74

$1574
current price $15.74Uxcell Duct Connector (6") - Flexible Canvas Female Fit Air Duct Vibration Noise Reducing Ducting Coupler Pipe Fitting Coupling for HVAC Ventilation Exhaust Fan Vent Systems, Green
SILENRADAWN Stainless Steel Range Hood Duct Connector for Home Ventilation System Seamless Durable Silver Coupling $14.96

$1496
current price $14.96SILENRADAWN Stainless Steel Range Hood Duct Connector for Home Ventilation System Seamless Durable Silver Coupling
Rollback, Uxcell 2Pcs 5" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long $23.01 Was $27.07
Rollback

Now$2301
current price Now $23.01, Was $27.07$27.07
Uxcell 2Pcs 5" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long
UPGRATOR Galvanized Duct Connector Heavy Duty Duct Coupling for Building Ventilation Projects Plated Silver $22.32

$2232
current price $22.32UPGRATOR Galvanized Duct Connector Heavy Duty Duct Coupling for Building Ventilation Projects Plated Silver
PENIKOKO White PVC Y Connector for Ventilation Ducts, Airflow Pipe Fitting, Tubing Accessory $11.22

$1122
current price $11.22PENIKOKO White PVC Y Connector for Ventilation Ducts, Airflow Pipe Fitting, Tubing Accessory
Uxcell 10" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long $22.79

$2279
current price $22.79Uxcell 10" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long
Uxcell 2Pcs 8" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long $37.58

$3758
current price $37.58Uxcell 2Pcs 8" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long
Reducer Coupling,8" x 6" Duct Size $171.25 Was $194.16

Now$17125
current price Now $171.25, Was $194.16$194.16
Reducer Coupling,8" x 6" Duct Size
AC Infinity Noise Reduction Clamps 8-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC $19.99

$1999
current price $19.99AC Infinity Noise Reduction Clamps 8-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC
Clearance, QAZbYD 6 Inch Plastic Vent Duct Connector, Universal Fit Airflow System Coupling for Home Improvement, Easy Install Ducting Joint $13.34 Was $14.99
Clearance

Now$1334
current price Now $13.34, Was $14.99$14.99
QAZbYD 6 Inch Plastic Vent Duct Connector, Universal Fit Airflow System Coupling for Home Improvement, Easy Install Ducting Joint
3 Inch Round Galvanized Steel Duct Connector - Metal Ventilation Pipe Coupler - Dryer Vent Hose Extension - HVAC Ducting Coupling for Straight Connection $22.99

$2299
current price $22.993 Inch Round Galvanized Steel Duct Connector - Metal Ventilation Pipe Coupler - Dryer Vent Hose Extension - HVAC Ducting Coupling for Straight Connection
Clearance, Nilnehc 6 Inch Duct Connector,ABS Plastic Exhaust Wall Vent Flange Adapter,Secure Airflow Coupling for 150mm Hose in Kitchen Bathroom and Dryer $12.81 Was $16.00
Clearance

Now$1281
current price Now $12.81, Was $16.00$16.00
Nilnehc 6 Inch Duct Connector,ABS Plastic Exhaust Wall Vent Flange Adapter,Secure Airflow Coupling for 150mm Hose in Kitchen Bathroom and Dryer
4 Inch Duct Fitting Connector for HVAC Ducting - Galvanized Steel Round Pipe Ductwork Adapter - Metal HVAC Coupling - Duct Elbow, Duct Splitter, Dryer Vent Connector Vent Extender $22.98

$2298
current price $22.984 Inch Duct Fitting Connector for HVAC Ducting - Galvanized Steel Round Pipe Ductwork Adapter - Metal HVAC Coupling - Duct Elbow, Duct Splitter, Dryer Vent Connector Vent Extender
Uxcell 12" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long $24.59

$2459
current price $24.59Uxcell 12" Galvanized Steel Duct Connector Duct Coupling Vent Coupler, 4" Long
2 Pcs 3 Inches 4 Inches Round Duct Connector Metal Ventilation Pipe Coupler Galvanized Steel HVAC Duct Coupling for Dryer Vent Pipe $13.29

$1329
current price $13.292 Pcs 3 Inches 4 Inches Round Duct Connector Metal Ventilation Pipe Coupler Galvanized Steel HVAC Duct Coupling for Dryer Vent Pipe
Rollback, Uxcell 7.1" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long $31.12 Was $38.99
Rollback

Now$3112
current price Now $31.12, Was $38.99$38.99
Uxcell 7.1" Duct Connector, 1 Set Galvanized Iron Duct Coupling Vent Coupler Dryer Pipe Coupling Hose Extension Connector with Duct Clamps for HVAC Exhaust Fan Vent Systems, 4" Long
AC Infinity Noise Reduction Clamps 4-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC $13.99

$1399
current price $13.99AC Infinity Noise Reduction Clamps 4-Inch, Duct Coupler with Stainless Steel Clamps, Flexible Rubber Coupling for Inline Fans and Carbon Filters in Growing and HVAC
5 out of 5 stars
Uxcell Duct Connector (4") - Flexible Canvas Female Fit Air Duct Vibration Noise Reducing Ducting Coupler Pipe Fitting Coupling for HVAC Ventilation Exhaust Fan Vent Systems, Green $10.82 Was $13.49

Now$1082
current price Now $10.82, Was $13.49$13.49
Uxcell Duct Connector (4") - Flexible Canvas Female Fit Air Duct Vibration Noise Reducing Ducting Coupler Pipe Fitting Coupling for HVAC Ventilation Exhaust Fan Vent Systems, Green
Other options to consider(51)
FAQ
How do I pick the right duct coupling size?
Choosing the correct duct coupling size is important for a secure fit and efficient airflow. Start by measuring the diameter of your existing ductwork—most couplings are sized to match standard duct diameters. If you're connecting two different sizes, look for a reducer or increaser coupling.
- Check the product description for compatible sizes.
- Consider the type of system (HVAC, dryer, exhaust) as requirements may vary.
- If you're unsure, bring your measurements to the store for guidance.
What materials are duct couplings made from?
Duct couplings come in several materials, each suited for different uses.
- Metal: Durable and ideal for HVAC systems, dryer vents, and areas needing heat resistance.
- Plastic: Lightweight, easy to install, and often used for ventilation or exhaust.
- Rubber or canvas: Flexible options that help reduce vibration and noise.
Can I use duct couplings for bathroom vents?
Yes, duct couplings are commonly used to connect bathroom vent ducts. Make sure the coupling matches the diameter of your vent pipe and is suitable for the moisture and air flow in a bathroom environment.
- Plastic couplings are popular for their resistance to corrosion.
- Metal couplings offer extra durability.
How do I install a duct coupling safely?
Safe installation starts with turning off any connected systems and wearing protective gear.
- Measure and cut duct ends cleanly.
- Fit the coupling snugly between duct sections.
- Secure with clamps or screws as recommended.
- Check for gaps and seal with approved tape if needed.
Are replacement duct couplings easy to find?
Replacement duct couplings are widely available in various sizes and materials.
- Check the diameter and type of your existing ductwork before shopping.
- Look for couplings in the HVAC, plumbing, or ventilation sections.
- Many stores offer both individual couplings and multi-packs.
Popular in Duct Coupling Connectors for HVAC Systems
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