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

$28.95

Duct Increaser / Reducer - Galvanized - 10X9 Inch

FAMCO MSFT STORE

$28.95

Duct Increaser / Reducer - Galvanized - 10X9 Inch

FAMCO MSFT STORE

$22.99

$25.99

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

Amazon.com

11% off

$22.99

$25.99

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

Amazon.com

$62.49

DL Wholesale Duct Reducer 14in To 12in Galvanized Steel HVAC Fitting For Ventilation And Airflow Control

Amazon.com

Free shipping

$62.49

DL Wholesale Duct Reducer 14in To 12in Galvanized Steel HVAC Fitting For Ventilation And Airflow Control

Amazon.com

$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

$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

$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

$28.95

Duct Increaser / Reducer - Aluminum - 10X9 Inch

FAMCO MSFT STORE

$28.95

Duct Increaser / Reducer - Aluminum - 10X9 Inch

FAMCO MSFT STORE

$18.36

$23.87

Galvanized Duct Reducer/Increaser 6" - 4" Duct DRI06-04 - DRI-06-04

Industrial Fans Direct

Free shipping

23% off

$18.36

$23.87

Galvanized Duct Reducer/Increaser 6" - 4" Duct DRI06-04 - DRI-06-04

Industrial Fans Direct

$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

$148.00

$157.00

3 1/4 X 10" Transition

Perigold

Free shipping

$148.00

$157.00

3 1/4 X 10" Transition

Perigold

$15.13

SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct

Voomi Supply

$15.13

SOUTHWARK METAL 358 8 Inch Trunk Reducer For 8 Inch Duct

Voomi Supply

$39.57

Southwark Metal 1101A2 Duct Reducer 2 Inches

Voomi Supply

$39.57

Southwark Metal 1101A2 Duct Reducer 2 Inches

Voomi Supply

$23.95

Tapered Duct Reducer - 8X7 Inch

FAMCO MSFT STORE

$23.95

Tapered Duct Reducer - 8X7 Inch

FAMCO MSFT STORE

$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

$117.49

Made In Usa 6-4" Id Galvanized Duct Reducer 8" Long, 22 Gage 15806-0000-1220 - 03233699

Penn Tool Co

$117.49

Made In Usa 6-4" Id Galvanized Duct Reducer 8" Long, 22 Gage 15806-0000-1220 - 03233699

Penn Tool Co

$25.99

$32.99

7" To 4" Galvanized Steel Crimped Air Duct Reducer/Increaser - 2 Pack For HVAC, Ventilation & Exhaust Systems (Bathroom, Kitchen, Dryer, Grow Tents,

Amazon.com

21% off

$25.99

$32.99

7" To 4" Galvanized Steel Crimped Air Duct Reducer/Increaser - 2 Pack For HVAC, Ventilation & Exhaust Systems (Bathroom, Kitchen, Dryer, Grow Tents,

Amazon.com

$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

$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

$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

$37.99

Duct Outlet Duct Reducer Without Collar - Single Wall Galvanized Metal Fitting HVAC (14" X 12")

Amazon.com

Free shipping

$37.99

Duct Outlet Duct Reducer Without Collar - Single Wall Galvanized Metal Fitting HVAC (14" X 12")

Amazon.com

$13.13

$15.45

IMPERIAL Short Duct Reducer 6 in L 28 Ga Gauge Galvanized Steel Silver GV0821

DkHardware.com

15% off

$13.13

$15.45

IMPERIAL Short Duct Reducer 6 in L 28 Ga Gauge Galvanized Steel Silver GV0821

DkHardware.com

$18.06

Southwark 35212 Duct Reducer, Trunk, 2 In, 28 Gauge THK, Silver, ASTM A653 | Skip The Warehouse

Skip The Warehouse

$18.06

Southwark 35212 Duct Reducer, Trunk, 2 In, 28 Gauge THK, Silver, ASTM A653 | Skip The Warehouse

Skip The Warehouse

$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

$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

$18.01

Southwark Metal 35210 2 Inch Trunk Reducer For 10 Inch Duct

Voomi Supply

$18.01

Southwark Metal 35210 2 Inch Trunk Reducer For 10 Inch Duct

Voomi Supply

$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

$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

$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

$14.99

Southwark Metal 581210 12 X 10 in No Crimp Galvanized Steel 3 Piece Reducer

Voomi Supply

$14.99

Southwark Metal 581210 12 X 10 in No Crimp Galvanized Steel 3 Piece Reducer

Voomi Supply

$16.99

6 To 4 Duct Reducer, Hon&Guan Duct Reducer Increaser 6 To 4 Reducer For 4/6 Inch Ducting HVAC Ventilation System-Black.

Amazon.com

1K+

$16.99

6 To 4 Duct Reducer, Hon&Guan Duct Reducer Increaser 6 To 4 Reducer For 4/6 Inch Ducting HVAC Ventilation System-Black.

Amazon.com

$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

$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

$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

$23.95

RDP Tapered Duct Reducer - 8 X 5 in.

Roofing Direct

$23.95

RDP Tapered Duct Reducer - 8 X 5 in.

Roofing Direct

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

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Ductboard Fabrication

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how to draw REDUCER || HVAC DRAFTING

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