Shop rectangular duct reducer

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$31.95
Duct Increaser / Reducer - Galvanized - 12X4 Inch
FAMCO MSFT STORE
$31.95
Duct Increaser / Reducer - Galvanized - 12X4 Inch
FAMCO MSFT STORE
$34.95
Tapered Duct Reducer - 12X6 Inch
FAMCO MSFT STORE
$34.95
Tapered Duct Reducer - 12X6 Inch
FAMCO MSFT STORE
$23.95
Duct Increaser / Reducer - Aluminum - 7X5 Inch
FAMCO MSFT STORE
$23.95
Duct Increaser / Reducer - Aluminum - 7X5 Inch
FAMCO MSFT STORE
$77.10
Southwark 17188 Duct Reducer, Trunk, 18 in X 8 To 14 in X 8 In, 26 Gauge THK | Skip The Warehouse
Skip The Warehouse
$77.10
Southwark 17188 Duct Reducer, Trunk, 18 in X 8 To 14 in X 8 In, 26 Gauge THK | Skip The Warehouse
Skip The Warehouse
$57.99
Duct Outlet 16" X 10" Duct Reducer, Single Wall Galvanized Metal Fitting HVAC
Amazon.com
Free shipping
$57.99
Duct Outlet 16" X 10" Duct Reducer, Single Wall Galvanized Metal Fitting HVAC
Amazon.com
$77.93
SOUTHWARK METAL 1.1022E+11 20X10-18X10 Rect. Reducer
Voomi Supply
$77.93
SOUTHWARK METAL 1.1022E+11 20X10-18X10 Rect. Reducer
Voomi Supply
$18.26
Southwark Metal 35210 2 Inch Trunk Reducer For 10 Inch Duct
Voomi Supply
$18.26
Southwark Metal 35210 2 Inch Trunk Reducer For 10 Inch Duct
Voomi Supply
$182.98
Southwark 172410-SW Duct Reducer, Trunk, 24" X 10" To 20" X 10" | Skip The Warehouse
Skip The Warehouse
$182.98
Southwark 172410-SW Duct Reducer, Trunk, 24" X 10" To 20" X 10" | Skip The Warehouse
Skip The Warehouse
$29.61
Southwark 58108 Duct Reducer, 3-PC, Plain, 10 in X 8 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$29.61
Southwark 58108 Duct Reducer, 3-PC, Plain, 10 in X 8 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$168.85
Range Hood Duct 10 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
3
Free shipping
$168.85
Range Hood Duct 10 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
$17.89
Southwark 356 Duct Reducer, Trunk, 6 In, 26 Gauge THK, Silver, ASTM A653 | Skip The Warehouse
Skip The Warehouse
$17.89
Southwark 356 Duct Reducer, Trunk, 6 In, 26 Gauge THK, Silver, ASTM A653 | Skip The Warehouse
Skip The Warehouse
$14.99
SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct
Voomi Supply
$14.99
SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct
Voomi Supply
$30.18
Southwark 5884 Duct Reducer, 3-PC, Plain, 8 in X 4 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$30.18
Southwark 5884 Duct Reducer, 3-PC, Plain, 8 in X 4 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$722.71
16" X 12" PVC Duct Reducer Coupling 1034-RC-1612
PVC Fittings Online
$722.71
16" X 12" PVC Duct Reducer Coupling 1034-RC-1612
PVC Fittings Online
$57.81
Southwark 581814-SW Duct Reducer, 3-PC, No Crimp, 18 in X 14 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$57.81
Southwark 581814-SW Duct Reducer, 3-PC, No Crimp, 18 in X 14 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$14.78
IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 30 Gauge 5 X 4-In. GV0781-A
DkHardware.com
1
$14.78
IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 30 Gauge 5 X 4-In. GV0781-A
DkHardware.com
$17.47
Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct
Voomi Supply
$17.47
Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct
Voomi Supply
$44.87
Southwark 581412-SW Duct Reducer, 3 Pieces, 14 in X 8 In, No Crimp, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$44.87
Southwark 581412-SW Duct Reducer, 3 Pieces, 14 in X 8 In, No Crimp, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$33.47
Slimduct SDR140100W 5-1/2" To 3-3/4" White Reducer
Skip The Warehouse
$33.47
Slimduct SDR140100W 5-1/2" To 3-3/4" White Reducer
Skip The Warehouse
$37.69
Southwark Metal 581610 Duct Reducer 16 in X 10 in
Voomi Supply
$37.69
Southwark Metal 581610 Duct Reducer 16 in X 10 in
Voomi Supply
$14.99
Imperial 6 in. D X 4 in. D Galvanized Steel Furnace Pipe Reducer
Ace Hardware
$14.99
Imperial 6 in. D X 4 in. D Galvanized Steel Furnace Pipe Reducer
Ace Hardware
$14.99
Southwark Metal, 3 Piece Reducer, 7 Inch X 6 Inch, Steel, Seamless Transition, No Crimp Design
Voomi Supply
$14.99
Southwark Metal, 3 Piece Reducer, 7 Inch X 6 Inch, Steel, Seamless Transition, No Crimp Design
Voomi Supply
$36.54
SOUTHWARK METAL, Duct Reducer, 12X8 To 8X8 Inches, N/A, Effective Airflow Transition, Durable Construction
Voomi Supply
$36.54
SOUTHWARK METAL, Duct Reducer, 12X8 To 8X8 Inches, N/A, Effective Airflow Transition, Durable Construction
Voomi Supply
$14.99
SOUTHWARK METAL, 3-Piece Reducer, 4 X 3 Inch, Steel, Hot Dipped Galvanized, Smooth Airflow Transition
Voomi Supply
$14.99
SOUTHWARK METAL, 3-Piece Reducer, 4 X 3 Inch, Steel, Hot Dipped Galvanized, Smooth Airflow Transition
Voomi Supply
$39.54
Southwark 17128108 Trunk Reducer 12 X 8-10 X 8 in
Voomi Supply
$39.54
Southwark 17128108 Trunk Reducer 12 X 8-10 X 8 in
Voomi Supply
$17.99
Southwark Metal 5864 6 X 4 Inch 3-Piece Reducer
Voomi Supply
$17.99
Southwark Metal 5864 6 X 4 Inch 3-Piece Reducer
Voomi Supply
$105.11
$116.79
HVAC Premium Round Metal Pipe Reducer & Increaser | 18" To 14" HVAC Duct Reducer Or Increaser 26G Gauge | Galvanized Sheet Metal Ducting Connector Is
HVAC Premium
10% off
$105.11
$116.79
HVAC Premium Round Metal Pipe Reducer & Increaser | 18" To 14" HVAC Duct Reducer Or Increaser 26G Gauge | Galvanized Sheet Metal Ducting Connector Is
HVAC Premium
$9.83
$12.58
Lukjan 2" X 10" Trunk Duct Reducer (MPN: 49-0210)
PlumbingSupplyandMore.com
21% off
$9.83
$12.58
Lukjan 2" X 10" Trunk Duct Reducer (MPN: 49-0210)
PlumbingSupplyandMore.com
$51.08
Kair Equal T Piece Adaptor 204mm X 60mm For Rectangular Plastic Ducting
Everymarket INC
$51.08
Kair Equal T Piece Adaptor 204mm X 60mm For Rectangular Plastic Ducting
Everymarket INC
$26.77
Southwark 352 Duct Reducer, 2 In, Steel | Skip The Warehouse
Skip The Warehouse
$26.77
Southwark 352 Duct Reducer, 2 In, Steel | Skip The Warehouse
Skip The Warehouse
$15.26
$31.80
Lukjan 6" X 10" Trunk Duct Reducer (MPN: DX800610)
PlumbingSupplyandMore.com
52% off
$15.26
$31.80
Lukjan 6" X 10" Trunk Duct Reducer (MPN: DX800610)
PlumbingSupplyandMore.com
$17.99
Gray Metal South, Duct Reducer, 14 in X 10 In, Steel, Maintains Airflow Efficiency, Reliable HVAC Solution
Voomi Supply
$17.99
Gray Metal South, Duct Reducer, 14 in X 10 In, Steel, Maintains Airflow Efficiency, Reliable HVAC Solution
Voomi Supply
$48.22
Kair Ducting Adaptor 220mm X 90mm To 150mm 6 Inch Rectangular To Round Straight Channel Connector For Converting To Di
Everymarket INC
$48.22
Kair Ducting Adaptor 220mm X 90mm To 150mm 6 Inch Rectangular To Round Straight Channel Connector For Converting To Di
Everymarket INC
$8.46
Broan-Nutone 475B 6" To 4" Duct Reducer (Priced Per Each)
PlumbersStock
$8.46
Broan-Nutone 475B 6" To 4" Duct Reducer (Priced Per Each)
PlumbersStock
$19.67
Southwark Metal Mfg Co 581612 58 16X12 3PC REDUCER
Voomi Supply
$19.67
Southwark Metal Mfg Co 581612 58 16X12 3PC REDUCER
Voomi Supply
$45.29
Southwark 17248-208 Reducing Duct Transition 24 X 8 To 20 X 8 in
Voomi Supply
$45.29
Southwark 17248-208 Reducing Duct Transition 24 X 8 To 20 X 8 in
Voomi Supply
Rectangular Ducts and Fittings - MEP Academy
Rectangular Ducts and Fittings - MEP Academy
Oct 2, 2020
mepacademy.com
How to Calculate Duct Size? (Round & Rectangular) - aircondlounge
How to Calculate Duct Size? (Round & Rectangular) - aircondlounge
Oct 25, 2021
aircondlounge.com
HVAC Ductwork Design Guide (Layout, Duct Size & CFM) - aircondlounge
HVAC Ductwork Design Guide (Layout, Duct Size & CFM) - aircon…
Feb 22, 2022
aircondlounge.com
3-1/4" x 10" to 6" Rectangular to Round Duct Transition Adapter Reducer, Galvanized Steel Fittings for Microwave Vent Kit, Range Hood, HVAC Exhaust Ducting, Includes Foil Tape & Gloves
0:25
3-1/4" x 10" to 6" Rectangular to Round Duct Transition Adapter Re…
Apr 23, 2025
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Shop rectangular duct reducer

Sponsored
About our ads
$14.99
SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct
Voomi Supply
$14.99
SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct
Voomi Supply
$30.18
Southwark 5884 Duct Reducer, 3-PC, Plain, 8 in X 4 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$30.18
Southwark 5884 Duct Reducer, 3-PC, Plain, 8 in X 4 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$722.71
16" X 12" PVC Duct Reducer Coupling 1034-RC-1612
PVC Fittings Online
$722.71
16" X 12" PVC Duct Reducer Coupling 1034-RC-1612
PVC Fittings Online
$57.81
Southwark 581814-SW Duct Reducer, 3-PC, No Crimp, 18 in X 14 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$57.81
Southwark 581814-SW Duct Reducer, 3-PC, No Crimp, 18 in X 14 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$14.78
IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 30 Gauge 5 X 4-In. GV0781-A
DkHardware.com
1
$14.78
IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 30 Gauge 5 X 4-In. GV0781-A
DkHardware.com
$17.47
Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct
Voomi Supply
$17.47
Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct
Voomi Supply
$44.87
Southwark 581412-SW Duct Reducer, 3 Pieces, 14 in X 8 In, No Crimp, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$44.87
Southwark 581412-SW Duct Reducer, 3 Pieces, 14 in X 8 In, No Crimp, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$33.47
Slimduct SDR140100W 5-1/2" To 3-3/4" White Reducer
Skip The Warehouse
$33.47
Slimduct SDR140100W 5-1/2" To 3-3/4" White Reducer
Skip The Warehouse
$37.69
Southwark Metal 581610 Duct Reducer 16 in X 10 in
Voomi Supply
$37.69
Southwark Metal 581610 Duct Reducer 16 in X 10 in
Voomi Supply
$14.99
Imperial 6 in. D X 4 in. D Galvanized Steel Furnace Pipe Reducer
Ace Hardware
$14.99
Imperial 6 in. D X 4 in. D Galvanized Steel Furnace Pipe Reducer
Ace Hardware
$14.99
Southwark Metal, 3 Piece Reducer, 7 Inch X 6 Inch, Steel, Seamless Transition, No Crimp Design
Voomi Supply
$14.99
Southwark Metal, 3 Piece Reducer, 7 Inch X 6 Inch, Steel, Seamless Transition, No Crimp Design
Voomi Supply
$36.54
SOUTHWARK METAL, Duct Reducer, 12X8 To 8X8 Inches, N/A, Effective Airflow Transition, Durable Construction
Voomi Supply
$36.54
SOUTHWARK METAL, Duct Reducer, 12X8 To 8X8 Inches, N/A, Effective Airflow Transition, Durable Construction
Voomi Supply
$14.99
SOUTHWARK METAL, 3-Piece Reducer, 4 X 3 Inch, Steel, Hot Dipped Galvanized, Smooth Airflow Transition
Voomi Supply
$14.99
SOUTHWARK METAL, 3-Piece Reducer, 4 X 3 Inch, Steel, Hot Dipped Galvanized, Smooth Airflow Transition
Voomi Supply
$39.54
Southwark 17128108 Trunk Reducer 12 X 8-10 X 8 in
Voomi Supply
$39.54
Southwark 17128108 Trunk Reducer 12 X 8-10 X 8 in
Voomi Supply
$17.99
Southwark Metal 5864 6 X 4 Inch 3-Piece Reducer
Voomi Supply
$17.99
Southwark Metal 5864 6 X 4 Inch 3-Piece Reducer
Voomi Supply
$105.11
$116.79
HVAC Premium Round Metal Pipe Reducer & Increaser | 18" To 14" HVAC Duct Reducer Or Increaser 26G Gauge | Galvanized Sheet Metal Ducting Connector Is
HVAC Premium
10% off
$105.11
$116.79
HVAC Premium Round Metal Pipe Reducer & Increaser | 18" To 14" HVAC Duct Reducer Or Increaser 26G Gauge | Galvanized Sheet Metal Ducting Connector Is
HVAC Premium
$9.83
$12.58
Lukjan 2" X 10" Trunk Duct Reducer (MPN: 49-0210)
PlumbingSupplyandMore.com
21% off
$9.83
$12.58
Lukjan 2" X 10" Trunk Duct Reducer (MPN: 49-0210)
PlumbingSupplyandMore.com
$51.08
Kair Equal T Piece Adaptor 204mm X 60mm For Rectangular Plastic Ducting
Everymarket INC
$51.08
Kair Equal T Piece Adaptor 204mm X 60mm For Rectangular Plastic Ducting
Everymarket INC

Shop rectangular duct reducer

Sponsored
About our ads
$31.95
Duct Increaser / Reducer - Galvanized - 12X4 Inch
FAMCO MSFT STORE
$31.95
Duct Increaser / Reducer - Galvanized - 12X4 Inch
FAMCO MSFT STORE
$34.95
Tapered Duct Reducer - 12X6 Inch
FAMCO MSFT STORE
$34.95
Tapered Duct Reducer - 12X6 Inch
FAMCO MSFT STORE
$23.95
Duct Increaser / Reducer - Aluminum - 7X5 Inch
FAMCO MSFT STORE
$23.95
Duct Increaser / Reducer - Aluminum - 7X5 Inch
FAMCO MSFT STORE
$77.10
Southwark 17188 Duct Reducer, Trunk, 18 in X 8 To 14 in X 8 In, 26 Gauge THK | Skip The Warehouse
Skip The Warehouse
$77.10
Southwark 17188 Duct Reducer, Trunk, 18 in X 8 To 14 in X 8 In, 26 Gauge THK | Skip The Warehouse
Skip The Warehouse
$57.99
Duct Outlet 16" X 10" Duct Reducer, Single Wall Galvanized Metal Fitting HVAC
Amazon.com
Free shipping
$57.99
Duct Outlet 16" X 10" Duct Reducer, Single Wall Galvanized Metal Fitting HVAC
Amazon.com
$77.93
SOUTHWARK METAL 1.1022E+11 20X10-18X10 Rect. Reducer
Voomi Supply
$77.93
SOUTHWARK METAL 1.1022E+11 20X10-18X10 Rect. Reducer
Voomi Supply
$18.26
Southwark Metal 35210 2 Inch Trunk Reducer For 10 Inch Duct
Voomi Supply
$18.26
Southwark Metal 35210 2 Inch Trunk Reducer For 10 Inch Duct
Voomi Supply
$182.98
Southwark 172410-SW Duct Reducer, Trunk, 24" X 10" To 20" X 10" | Skip The Warehouse
Skip The Warehouse
$182.98
Southwark 172410-SW Duct Reducer, Trunk, 24" X 10" To 20" X 10" | Skip The Warehouse
Skip The Warehouse
$29.61
Southwark 58108 Duct Reducer, 3-PC, Plain, 10 in X 8 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$29.61
Southwark 58108 Duct Reducer, 3-PC, Plain, 10 in X 8 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$168.85
Range Hood Duct 10 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
3
Free shipping
$168.85
Range Hood Duct 10 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
$17.89
Southwark 356 Duct Reducer, Trunk, 6 In, 26 Gauge THK, Silver, ASTM A653 | Skip The Warehouse
Skip The Warehouse
$17.89
Southwark 356 Duct Reducer, Trunk, 6 In, 26 Gauge THK, Silver, ASTM A653 | Skip The Warehouse
Skip The Warehouse
$14.99
SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct
Voomi Supply
$14.99
SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct
Voomi Supply
$30.18
Southwark 5884 Duct Reducer, 3-PC, Plain, 8 in X 4 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$30.18
Southwark 5884 Duct Reducer, 3-PC, Plain, 8 in X 4 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$722.71
16" X 12" PVC Duct Reducer Coupling 1034-RC-1612
PVC Fittings Online
$722.71
16" X 12" PVC Duct Reducer Coupling 1034-RC-1612
PVC Fittings Online
$57.81
Southwark 581814-SW Duct Reducer, 3-PC, No Crimp, 18 in X 14 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$57.81
Southwark 581814-SW Duct Reducer, 3-PC, No Crimp, 18 in X 14 In, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$14.78
IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 30 Gauge 5 X 4-In. GV0781-A
DkHardware.com
1
$14.78
IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 30 Gauge 5 X 4-In. GV0781-A
DkHardware.com
$17.47
Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct
Voomi Supply
$17.47
Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct
Voomi Supply
$44.87
Southwark 581412-SW Duct Reducer, 3 Pieces, 14 in X 8 In, No Crimp, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse
$44.87
Southwark 581412-SW Duct Reducer, 3 Pieces, 14 in X 8 In, No Crimp, 28 Gauge THK | Skip The Warehouse
Skip The Warehouse

  • Nordfab Ducting Supplies | Industrial Ducting

    https://www.ductingsystems.com › nordfab
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