Rectangular Duct Reducer

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$19.89

TOP-VIGOR 4 Inch Diameter Duct Transition, 3-1/4" X 10" To 4" Rectangular To Round Duct Transition, Galvanized HVAC Vent Connector For Exhaust Fan,

Amazon.com

$19.89

TOP-VIGOR 4 Inch Diameter Duct Transition, 3-1/4" X 10" To 4" Rectangular To Round Duct Transition, Galvanized HVAC Vent Connector For Exhaust Fan,

Amazon.com

$30.99

4'' Dia. Round To Rectangular Duct Transition Adapter, 3-1/4" X 10" Galvanized Steel For Microwave Vent Kit Ducting Hose, Range Hood, HVAC, Exhaust

Amazon.com

$30.99

4'' Dia. Round To Rectangular Duct Transition Adapter, 3-1/4" X 10" Galvanized Steel For Microwave Vent Kit Ducting Hose, Range Hood, HVAC, Exhaust

Amazon.com

$31.99

Duct Outlet 12" X 10" Duct Reducer, Single Wall Galvanized Metal Fitting HVAC

Amazon.com

Free shipping

$31.99

Duct Outlet 12" X 10" Duct Reducer, Single Wall Galvanized Metal Fitting HVAC

Amazon.com

$76.80

SOUTHWARK METAL 1.1022E+11 20X10-18X10 Rect. Reducer

Voomi Supply

$76.80

SOUTHWARK METAL 1.1022E+11 20X10-18X10 Rect. Reducer

Voomi Supply

$22.99

Pasimy 4'' Dia X 3-1/4 X 10'' L Rectangular To Round Duct Galvanized Steel Transition For Connecting Duct Fittings

Amazon.com

$22.99

Pasimy 4'' Dia X 3-1/4 X 10'' L Rectangular To Round Duct Galvanized Steel Transition For Connecting Duct Fittings

Amazon.com

$28.95

Duct Increaser / Reducer - Galvanized - 10X9 Inch

FAMCO MSFT STORE

$28.95

Duct Increaser / Reducer - Galvanized - 10X9 Inch

FAMCO MSFT STORE

$57.95

RDP Galvanized Duct Increaser / Reducer - 18 X 12 in.

Roofing Direct

$57.95

RDP Galvanized Duct Increaser / Reducer - 18 X 12 in.

Roofing Direct

$28.95

Duct Increaser / Reducer - Aluminum - 10X9 Inch

FAMCO MSFT STORE

$28.95

Duct Increaser / Reducer - Aluminum - 10X9 Inch

FAMCO MSFT STORE

$23.95

Tapered Duct Reducer - 8X7 Inch

FAMCO MSFT STORE

$23.95

Tapered Duct Reducer - 8X7 Inch

FAMCO MSFT STORE

$38.95

Southwark Metal 581610 Duct Reducer 16 in X 10 in

Voomi Supply

$38.95

Southwark Metal 581610 Duct Reducer 16 in X 10 in

Voomi Supply

$163.93

Range Hood Duct 10 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft

Home Depot

Free shipping

$163.93

Range Hood Duct 10 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft

Home Depot

$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

$17.30

Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct

Voomi Supply

$17.30

Southwark Metal 0350410 4 in. Galvanized 28 Gauge Steel Trunk Duct Reducer For 10 in. Duct

Voomi Supply

$19.40

$20.42

Metal Concentric Reducer 2" To 1 1/4" Hvac Duct Reducer & Increaser

eBay

$19.40

$20.42

Metal Concentric Reducer 2" To 1 1/4" Hvac Duct Reducer & Increaser

eBay

$90.64

Transition Duct 10 in Round To Rectangular Galvanized Steel HVAC Adapter 26Ga

eBay

Free shipping

$90.64

Transition Duct 10 in Round To Rectangular Galvanized Steel HVAC Adapter 26Ga

eBay

$119.99

Made In Usa 8-6" Id Galvanized Duct Reducer 8" Long, 22 Gage 15808-0000-1220 - 03233707

Penn Tool Co

$119.99

Made In Usa 8-6" Id Galvanized Duct Reducer 8" Long, 22 Gage 15808-0000-1220 - 03233707

Penn Tool Co

$138.16

Made In Usa 10-6" Id Galvanized Duct Reducer 10" Long, 20 Gage 15810-0000-1220 - 03233715

Penn Tool Co

$138.16

Made In Usa 10-6" Id Galvanized Duct Reducer 10" Long, 20 Gage 15810-0000-1220 - 03233715

Penn Tool Co

$83.75

Southwark Metal 358 8 Inch Trunk Reducer For 8 Inch Duct

eBay

Free shipping

$83.75

Southwark Metal 358 8 Inch Trunk Reducer For 8 Inch Duct

eBay

$40.18

Southwark 17168128 Trunk Transition Reducer 16 X 8-12 X 8 in

Voomi Supply

$40.18

Southwark 17168128 Trunk Transition Reducer 16 X 8-12 X 8 in

Voomi Supply

$44.67

Southwark 17248-208 Reducing Duct Transition 24 X 8 To 20 X 8 in

Voomi Supply

$44.67

Southwark 17248-208 Reducing Duct Transition 24 X 8 To 20 X 8 in

Voomi Supply

$80.95

RDP Tapered Duct Reducer - 22 X 20 in.

Roofing Direct

$80.95

RDP Tapered Duct Reducer - 22 X 20 in.

Roofing Direct

$14.83

$17.44

IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 28 Gauge 7 X 5-In. GV0786

DkHardware.com

14% off

$14.83

$17.44

IMPERIAL HVAC Duct Pipe Reducer/ Increaser No Crimp 28 Gauge 7 X 5-In. GV0786

DkHardware.com

$23.92

Southwark Metal Mfg 35610 Trunk Reducer 6 For 10 Duct

Voomi Supply

$23.92

Southwark Metal Mfg 35610 Trunk Reducer 6 For 10 Duct

Voomi Supply

$31.95

FAMCO Aluminum Duct Increaser / Reducer - IR1210A

Roofing Direct

$31.95

FAMCO Aluminum Duct Increaser / Reducer - IR1210A

Roofing Direct

$18.54

Southwark 35412 Duct Reducer, Trunk, 4 In, 28 Gauge THK, Silver, ASTM A653 | Skip The Warehouse

Skip The Warehouse

$18.54

Southwark 35412 Duct Reducer, Trunk, 4 In, 28 Gauge THK, Silver, ASTM A653 | Skip The Warehouse

Skip The Warehouse

$39.57

Southwark Metal 1101A2 Duct Reducer 2 Inches

Voomi Supply

$39.57

Southwark Metal 1101A2 Duct Reducer 2 Inches

Voomi Supply

$52.11

SOUTHWARK METAL MFG CO 17208188 17 20X8-18X8 DUCT REDUCER

Voomi Supply

$52.11

SOUTHWARK METAL MFG CO 17208188 17 20X8-18X8 DUCT REDUCER

Voomi Supply

$21.99

8 Inch To 6 Inch Duct Reducer, Hon&Guan Duct Reducer Increaser 8 To 6 Reducer For 6/8 Inch Ducting HVAC Ventilation System-Black.

Amazon.com

1K+

$21.99

8 Inch To 6 Inch Duct Reducer, Hon&Guan Duct Reducer Increaser 8 To 6 Reducer For 6/8 Inch Ducting HVAC Ventilation System-Black.

Amazon.com

$12.99

$13.99

4 To 3 Inch Duct Reducer, Hon&Guan Galvanized Steel Duct Increaser 4 To 3 Duct Reducer For 3/4 Inch Duct, Inline Fan, Grow Tent Ventilation

Amazon.com

$12.99

$13.99

4 To 3 Inch Duct Reducer, Hon&Guan Galvanized Steel Duct Increaser 4 To 3 Duct Reducer For 3/4 Inch Duct, Inline Fan, Grow Tent Ventilation

Amazon.com

$46.50

Goodman Duct Reducer P_ 58108 Plain 10 in X 8 in Galvanized Steel

eBay

$46.50

Goodman Duct Reducer P_ 58108 Plain 10 in X 8 in Galvanized Steel

eBay

$148.00

$157.00

3 1/4 X 10" Transition

Perigold

Free shipping

$148.00

$157.00

3 1/4 X 10" Transition

Perigold

$18.12

$21.32

Concentric Reducer 2" To 1 1/2" Hvac Duct Reducer & Increaser Weld

eBay

15% off

$18.12

$21.32

Concentric Reducer 2" To 1 1/2" Hvac Duct Reducer & Increaser Weld

eBay

$19.82

Southwark 358 Duct Reducer, Trunk, 8 In, 26 Gauge THK, Silver, ASTM A653 | Skip The Warehouse

Skip The Warehouse

$19.82

Southwark 358 Duct Reducer, Trunk, 8 In, 26 Gauge THK, Silver, ASTM A653 | Skip The Warehouse

Skip The Warehouse

$54.13

Southwark Bp5887 Reducer 8X7" 24 Ga Steel Black 3-Piece Duct

eBay

Free shipping

$54.13

Southwark Bp5887 Reducer 8X7" 24 Ga Steel Black 3-Piece Duct

eBay

$41.06

Southwark 17148128 Trunk Reducer, 14 X 8-12 X 8 in

Voomi Supply

$41.06

Southwark 17148128 Trunk Reducer, 14 X 8-12 X 8 in

Voomi Supply

$18.12

$21.32

Concentric Reducer 2" To 1 1/2" Steel Hvac Duct Reducer & Increaser

eBay

Free shipping

15% off

$18.12

$21.32

Concentric Reducer 2" To 1 1/2" Steel Hvac Duct Reducer & Increaser

eBay

Rectangular Ducts and Fittings - MEP Academy

Oct 2, 2020

mepacademy.com

How to Calculate Duct Size? (Round & Rectangular) - aircondlounge

Oct 25, 2021

aircondlounge.com

HVAC Ductwork Design Guide (Layout, Duct Size & CFM) - aircon…

Feb 22, 2022

aircondlounge.com

18:10

Ductboard Fabrication

25K viewsNov 13, 2020

YouTubeAIR MAN

3:40

Residential Ductwork Design Made Simple

62.9K viewsJul 17, 2013

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how to draw REDUCER || HVAC DRAFTING

8.3K viewsJun 19, 2021

YouTubeDG Tech

Duct Area Calculations || Square duct, Rectangular duct, Round du…

37.5K viewsMay 15, 2020

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Double Offset/Off-Center Rectangular Reducer Duct Twisted

2.8K viewsSep 22, 2020

YouTubeAgila Sheet Metal