Shop rectangular duct fittings

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$19.89
$21.89
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
$21.89
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
$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
Free shipping
$21.39
PATIKIL 6" Duct Connector, Metal Flange Fitting Duct Air Tight Couplings Vent Extension With Flange For Heating Cooling Ventilation HVAC System
Amazon.com
2
$21.39
PATIKIL 6" Duct Connector, Metal Flange Fitting Duct Air Tight Couplings Vent Extension With Flange For Heating Cooling Ventilation HVAC System
Amazon.com
2
$156.25
Range Hood Duct 8 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
1
Free shipping
$156.25
Range Hood Duct 8 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
1
$5.98
IMPERIAL 30.0 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Connector Cleat | GVL0254-B
Lowe's
17
$5.98
IMPERIAL 30.0 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Connector Cleat | GVL0254-B
Lowe's
17
$14.88
IMPERIAL 30 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Elbow | GVL0105-B
Lowe's
26
$14.88
IMPERIAL 30 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Elbow | GVL0105-B
Lowe's
26
$8.98
3-1/4 in. X 10 in. Short Way 90 Degree Rectangular Elbow
Home Depot
110
Free shipping
$8.98
3-1/4 in. X 10 in. Short Way 90 Degree Rectangular Elbow
Home Depot
110
$17.28
IMPERIAL 30 Gauge Galvanized Steel Rectangle Rectangular Stack Duct Starting Collar | GVL0097-A
Lowe's
$17.28
IMPERIAL 30 Gauge Galvanized Steel Rectangle Rectangular Stack Duct Starting Collar | GVL0097-A
Lowe's
$18.98
3-1/4 in. X 10 in. Rectangular Stack Duct Starting Collar
Home Depot
142
Free shipping
$18.98
3-1/4 in. X 10 in. Rectangular Stack Duct Starting Collar
Home Depot
142
$38.15
90 Degree Rectangular Shortway Elbow Duct 12" Long X 2-1/4" Id (3-1/4"
eBay
374
Free shipping
$38.15
90 Degree Rectangular Shortway Elbow Duct 12" Long X 2-1/4" Id (3-1/4"
eBay
374
$16.30
10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
Home Depot
41
Free shipping
$16.30
10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
Home Depot
41
$8.98
IMPERIAL 30 Gauge Galvanized Steel Rectangle Flat 90 Degree Shortway Duct Elbow | GVL0103-B
Lowe's
23
$8.98
IMPERIAL 30 Gauge Galvanized Steel Rectangle Flat 90 Degree Shortway Duct Elbow | GVL0103-B
Lowe's
23
$57.24
SOUTHWARK METAL Transition Fitting, 24X8 To 12X8, Smooth Duct Transition, Galvanized Steel
Voomi Supply
$57.24
SOUTHWARK METAL Transition Fitting, 24X8 To 12X8, Smooth Duct Transition, Galvanized Steel
Voomi Supply
$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
Free shipping
$19.99
$39.99
Deflecto® Galvanized Rectangular To Round Transition (6 In.) In Silver
Target
Free shipping
50% off
$19.99
$39.99
Deflecto® Galvanized Rectangular To Round Transition (6 In.) In Silver
Target
Free shipping
$16.28
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle 90 Degree Register Duct Boot | GVL0090 A
Lowe's
13
$16.28
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle 90 Degree Register Duct Boot | GVL0090 A
Lowe's
13
$34.22
Sealtite 4G124008080000 Rectangular Duct Elbow 8 X 8
Voomi Supply
$34.22
Sealtite 4G124008080000 Rectangular Duct Elbow 8 X 8
Voomi Supply
$8.48
IMPERIAL 12-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0246-B
Lowe's
$8.48
IMPERIAL 12-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0246-B
Lowe's
$9.08
IMPERIAL 16-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0247-B
Lowe's
$9.08
IMPERIAL 16-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0247-B
Lowe's
$20.98
Deflecto 6-In Galvanized Steel Rectangle Duct Boot | VENDGT36
Lowe's
107
$20.98
Deflecto 6-In Galvanized Steel Rectangle Duct Boot | VENDGT36
Lowe's
107
$8.97
$16.30
Master Flow LW90E10X3.25 10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
PrairieGrit
41
44% off
$8.97
$16.30
Master Flow LW90E10X3.25 10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
PrairieGrit
41
$14.99
SOUTHWARK METAL Rectangular To Round Transition, 16 X 16 X 14, Efficient Airflow, Leak Prevention
Voomi Supply
$14.99
SOUTHWARK METAL Rectangular To Round Transition, 16 X 16 X 14, Efficient Airflow, Leak Prevention
Voomi Supply
$7.08
IMPERIAL 10-In X 3.25-In Galvanized Steel Rectangular Stack Duct End Cap | GVL0273-A
Lowe's
6
$7.08
IMPERIAL 10-In X 3.25-In Galvanized Steel Rectangular Stack Duct End Cap | GVL0273-A
Lowe's
6
$8.58
IMPERIAL 14.5-In X 8.25-In Galvanized Steel Rectangular Duct End Cap | GVL0274
Lowe's
$8.58
IMPERIAL 14.5-In X 8.25-In Galvanized Steel Rectangular Duct End Cap | GVL0274
Lowe's
$20.48
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0132-B
Lowe's
7
$20.48
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0132-B
Lowe's
7
$18.49
ZUDKSUY 8 Inch Duct Connector Flange, Galvanized 8" Duct Flange Metal Square To Round Duct Pipe Connector For HVAC Ventilation Cooling Heating And Air
Amazon.com
11
$18.49
ZUDKSUY 8 Inch Duct Connector Flange, Galvanized 8" Duct Flange Metal Square To Round Duct Pipe Connector For HVAC Ventilation Cooling Heating And Air
Amazon.com
11
$9.33
12 in. X 8 in. Rectangular Duct Cap
Home Depot
33
Free shipping
$9.33
12 in. X 8 in. Rectangular Duct Cap
Home Depot
33
$17.78
IMPERIAL 4-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0266-A
Lowe's
5
$17.78
IMPERIAL 4-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0266-A
Lowe's
5
$37.17
Lukjan DT02080848 DT02 Rectangular Duct 28 Gauge 8 Slip X 8 Drive X 48 Length
Voomi Supply
$37.17
Lukjan DT02080848 DT02 Rectangular Duct 28 Gauge 8 Slip X 8 Drive X 48 Length
Voomi Supply
$70.17
SOUTHWARK METAL 14S248 24X8 Trunk Duct Flat 90 Degree Elbow
Voomi Supply
$70.17
SOUTHWARK METAL 14S248 24X8 Trunk Duct Flat 90 Degree Elbow
Voomi Supply
$109.48
Value Collection Galvanized Duct Flatway 90 Degreestack Els 21503120
DkHardware.com
$109.48
Value Collection Galvanized Duct Flatway 90 Degreestack Els 21503120
DkHardware.com
$1,320.07
Fantech FRD24-14 RECTANGULAR INLINE DUCT
Voomi Supply
$1,320.07
Fantech FRD24-14 RECTANGULAR INLINE DUCT
Voomi Supply
$2,399.40
T&B Ty4x3whw6 4X3" Wide Slot Halogen Free Duct
Gordon Electric Supply
$2,399.40
T&B Ty4x3whw6 4X3" Wide Slot Halogen Free Duct
Gordon Electric Supply
$329.00
16 X 14 X 8 Inch Clamp Together Wye Joint Duct Fitting
Oneida Air Systems Inc.
$329.00
16 X 14 X 8 Inch Clamp Together Wye Joint Duct Fitting
Oneida Air Systems Inc.
$194.00
8 X 8 X 4 Inch Clamp Together Wye Joint Duct Fitting
Oneida Air Systems Inc.
$194.00
8 X 8 X 4 Inch Clamp Together Wye Joint Duct Fitting
Oneida Air Systems Inc.
$75.35
Southwark Metal SW110216X10-12X10 Duct Transition
Voomi Supply
$75.35
Southwark Metal SW110216X10-12X10 Duct Transition
Voomi Supply
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Shop rectangular duct fittings

Sponsored
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$8.98
IMPERIAL 30 Gauge Galvanized Steel Rectangle Flat 90 Degree Shortway Duct Elbow | GVL0103-B
Lowe's
23
$8.98
IMPERIAL 30 Gauge Galvanized Steel Rectangle Flat 90 Degree Shortway Duct Elbow | GVL0103-B
Lowe's
$57.24
SOUTHWARK METAL Transition Fitting, 24X8 To 12X8, Smooth Duct Transition, Galvanized Steel
Voomi Supply
$57.24
SOUTHWARK METAL Transition Fitting, 24X8 To 12X8, Smooth Duct Transition, Galvanized Steel
Voomi Supply
$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
$19.99
$39.99
Deflecto® Galvanized Rectangular To Round Transition (6 In.) In Silver
Target
Free shipping
50% off
$19.99
$39.99
Deflecto® Galvanized Rectangular To Round Transition (6 In.) In Silver
Target
$16.28
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle 90 Degree Register Duct Boot | GVL0090 A
Lowe's
13
$16.28
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle 90 Degree Register Duct Boot | GVL0090 A
Lowe's
$34.22
Sealtite 4G124008080000 Rectangular Duct Elbow 8 X 8
Voomi Supply
$34.22
Sealtite 4G124008080000 Rectangular Duct Elbow 8 X 8
Voomi Supply
$8.48
IMPERIAL 12-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0246-B
Lowe's
$8.48
IMPERIAL 12-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0246-B
Lowe's
$9.08
IMPERIAL 16-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0247-B
Lowe's
$9.08
IMPERIAL 16-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0247-B
Lowe's
$20.98
Deflecto 6-In Galvanized Steel Rectangle Duct Boot | VENDGT36
Lowe's
107
$20.98
Deflecto 6-In Galvanized Steel Rectangle Duct Boot | VENDGT36
Lowe's
$8.97
$16.30
Master Flow LW90E10X3.25 10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
PrairieGrit
41
44% off
$8.97
$16.30
Master Flow LW90E10X3.25 10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
PrairieGrit
$14.99
SOUTHWARK METAL Rectangular To Round Transition, 16 X 16 X 14, Efficient Airflow, Leak Prevention
Voomi Supply
$14.99
SOUTHWARK METAL Rectangular To Round Transition, 16 X 16 X 14, Efficient Airflow, Leak Prevention
Voomi Supply
$7.08
IMPERIAL 10-In X 3.25-In Galvanized Steel Rectangular Stack Duct End Cap | GVL0273-A
Lowe's
6
$7.08
IMPERIAL 10-In X 3.25-In Galvanized Steel Rectangular Stack Duct End Cap | GVL0273-A
Lowe's
$8.58
IMPERIAL 14.5-In X 8.25-In Galvanized Steel Rectangular Duct End Cap | GVL0274
Lowe's
$8.58
IMPERIAL 14.5-In X 8.25-In Galvanized Steel Rectangular Duct End Cap | GVL0274
Lowe's
$20.48
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0132-B
Lowe's
7
$20.48
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0132-B
Lowe's
$18.49
ZUDKSUY 8 Inch Duct Connector Flange, Galvanized 8" Duct Flange Metal Square To Round Duct Pipe Connector For HVAC Ventilation Cooling Heating And Air
Amazon.com
11
$18.49
ZUDKSUY 8 Inch Duct Connector Flange, Galvanized 8" Duct Flange Metal Square To Round Duct Pipe Connector For HVAC Ventilation Cooling Heating And Air
Amazon.com
$9.33
12 in. X 8 in. Rectangular Duct Cap
Home Depot
33
Free shipping
$9.33
12 in. X 8 in. Rectangular Duct Cap
Home Depot
$17.78
IMPERIAL 4-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0266-A
Lowe's
5
$17.78
IMPERIAL 4-In 30 Gauge Galvanized Steel Rectangle Straight Register Duct Boot | GVL0266-A
Lowe's
$37.17
Lukjan DT02080848 DT02 Rectangular Duct 28 Gauge 8 Slip X 8 Drive X 48 Length
Voomi Supply
$37.17
Lukjan DT02080848 DT02 Rectangular Duct 28 Gauge 8 Slip X 8 Drive X 48 Length
Voomi Supply

Shop rectangular duct fittings

Sponsored
About our ads
$19.89
$21.89
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
$21.89
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
$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
Free shipping
$21.39
PATIKIL 6" Duct Connector, Metal Flange Fitting Duct Air Tight Couplings Vent Extension With Flange For Heating Cooling Ventilation HVAC System
Amazon.com
2
$21.39
PATIKIL 6" Duct Connector, Metal Flange Fitting Duct Air Tight Couplings Vent Extension With Flange For Heating Cooling Ventilation HVAC System
Amazon.com
2
$156.25
Range Hood Duct 8 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
1
Free shipping
$156.25
Range Hood Duct 8 in. X 19 in. X 2 in. Rectangular To Round Transition For Lift Downdraft
Home Depot
1
$5.98
IMPERIAL 30.0 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Connector Cleat | GVL0254-B
Lowe's
17
$5.98
IMPERIAL 30.0 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Connector Cleat | GVL0254-B
Lowe's
17
$14.88
IMPERIAL 30 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Elbow | GVL0105-B
Lowe's
26
$14.88
IMPERIAL 30 Gauge Galvanized Steel Rectangle Duct Stack Head Duct Elbow | GVL0105-B
Lowe's
26
$8.98
3-1/4 in. X 10 in. Short Way 90 Degree Rectangular Elbow
Home Depot
110
Free shipping
$8.98
3-1/4 in. X 10 in. Short Way 90 Degree Rectangular Elbow
Home Depot
110
$17.28
IMPERIAL 30 Gauge Galvanized Steel Rectangle Rectangular Stack Duct Starting Collar | GVL0097-A
Lowe's
$17.28
IMPERIAL 30 Gauge Galvanized Steel Rectangle Rectangular Stack Duct Starting Collar | GVL0097-A
Lowe's
$18.98
3-1/4 in. X 10 in. Rectangular Stack Duct Starting Collar
Home Depot
142
Free shipping
$18.98
3-1/4 in. X 10 in. Rectangular Stack Duct Starting Collar
Home Depot
142
$38.15
90 Degree Rectangular Shortway Elbow Duct 12" Long X 2-1/4" Id (3-1/4"
eBay
374
Free shipping
$38.15
90 Degree Rectangular Shortway Elbow Duct 12" Long X 2-1/4" Id (3-1/4"
eBay
374
$16.30
10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
Home Depot
41
Free shipping
$16.30
10 in. X 3-1/4 in. 90-Degree Rectangular Elbow
Home Depot
41
$8.98
IMPERIAL 30 Gauge Galvanized Steel Rectangle Flat 90 Degree Shortway Duct Elbow | GVL0103-B
Lowe's
23
$8.98
IMPERIAL 30 Gauge Galvanized Steel Rectangle Flat 90 Degree Shortway Duct Elbow | GVL0103-B
Lowe's
23
$57.24
SOUTHWARK METAL Transition Fitting, 24X8 To 12X8, Smooth Duct Transition, Galvanized Steel
Voomi Supply
$57.24
SOUTHWARK METAL Transition Fitting, 24X8 To 12X8, Smooth Duct Transition, Galvanized Steel
Voomi Supply
$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
Free shipping
$19.99
$39.99
Deflecto® Galvanized Rectangular To Round Transition (6 In.) In Silver
Target
Free shipping
50% off
$19.99
$39.99
Deflecto® Galvanized Rectangular To Round Transition (6 In.) In Silver
Target
Free shipping
$16.28
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle 90 Degree Register Duct Boot | GVL0090 A
Lowe's
13
$16.28
IMPERIAL 6-In 30 Gauge Galvanized Steel Rectangle 90 Degree Register Duct Boot | GVL0090 A
Lowe's
13
$34.22
Sealtite 4G124008080000 Rectangular Duct Elbow 8 X 8
Voomi Supply
$34.22
Sealtite 4G124008080000 Rectangular Duct Elbow 8 X 8
Voomi Supply
$8.48
IMPERIAL 12-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0246-B
Lowe's
$8.48
IMPERIAL 12-In X 8-In Galvanized Steel Rectangular Duct End Cap | GVL0246-B
Lowe's