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Duct Size
2
3
3
1/2
4
4
1/2
5
5
1/2
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
32
34
36
38
40
42
44
46
48
52
Shape
30° Elbow
45° Elbow
60° Elbow
90° Elbow
Adjustable-Angle Elbow
Cap
Straight
Tee
Wye
Material
Aluminum
Plastic
Rubber
Stainless Steel
Steel
ID
2"
2
7/8"
3"
3
1/16"
3
1/8"
3
3/16"
3
17/32"
3
9/16"
3
7/8"
3
15/16"
4"
4
1/16"
4
1/2"
4
17/32"
4
9/16"
Component
Adapter
Adjustment Sleeve
Airflow Damper
Ball Joint
Blast Gate
Bracket
Clamp
Collar
Connector
Damper Handle
Downdraft Diverter
Draft Damper
Duct
Duct with Access Panel
End Cap
Fitting Connection
Interlocking Bracket
Press Fit
Push to Connect
Quick-Disconnect Clamp
Slip On
Twist Connect
Worm-Drive Clamp
OD
1/4"
1
7/8"
2
5/16"
2
13/16"
2
7/8"
2
15/16"
3
3/8"
3
3/4"
3
13/16"
3
7/8"
3
15/16"
4"
4
3/8"
4
1/2"
4
3/4"
Gauge
30
28
26
24
22
20
18
16
14
Finish
Aluminum-Zinc Alloy Coated
Galvanized
Painted
Powder Coated
PVC Coated
Gender
Female
Male
Duct Profile
Oval
Rectangular
Round
Square
End Construction
Crimped
Plain
Rolled
Spiral
Tapered
DFARS Specialty Metals
Exempt
REACH
Compliant
Not Compliant
Export Control Classification Number (ECCN)
2B999
EAR99
RoHS
Compliant
Not Compliant
Performance
Chemical Resistant
Corrosion Resistant
Easy Install
Fire Rated
Lightweight
Quick Disconnect
Self-Cleaning
Tight Seal
Vibration Damping
Duct Type
Clamp Together
Fabric
Oval
Plastic
Rectangular
Spiral
Standard
Length
4
5/16"
4
1/2"
4
5/8"
4
7/8"
5
3/16"
5
3/8"
6
3/8"
7
1/2"
8"
8
1/4"
8
7/8"
10"
10
1/2"
11
1/2"
13"
14
1/2"
17"
18"
18
3/4"
23"
2 ft.
3 ft.
4 ft.
58
3/4"
59
1/16"
59
1/4"
5 ft.
6 ft.
8 ft.
10 ft.
25 ft.
50 ft.
Duct Adapter Type
Duct-to-Duct
Duct-to-Duct with Flange
Duct-to-Hose
Oval Duct to Standard Duct
Pipe-to-Duct
Flange Mount Type
Screw On
Weld On
For Duct Shape
Rectangle
Round
Square
Width
1
1/16"
1
1/8"
2"
2
7/8"
3
1/4"
3
1/2"
3
5/8"
3
11/16"
4"
4
1/2"
4
5/8"
5"
5
1/8"
5
3/8"
5
1/2"
Duct Construction
Closed
Open
Number of Mounting Holes
4
6
8
10
12
16
18
24
Slide Material
Plastic
Stainless Steel
Steel
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1,996 Products
Duct and Fittings
Quick-Disconnect Duct and Fittings
The fastest to disassemble for dust collection and other frequently cleaned systems
563 products
Standard Duct and Fittings
Deliver air for a range of HVAC applications, including exhaust and dust collection
502 products
Spiral Duct and Fittings
A continuous seam reinforces duct against suction from dust collection systems
357 products
Duct Flanges
Mount to air handlers and HVAC equipment to start a run of duct
169 products
Chemical-Resistant Duct and Fittings
Withstand corrosive gases, vapors, and fumes that would eat away at most metal duct
80 products
Tight-Seal Spiral Duct and Fittings
Gasketed fittings prevent leaks and the seam reinforces duct against suction from dust collection systems
70 products
Rectangular Duct and Fittings
Maximize the space in close quarters, such as inside walls and ceilings
49 products
Duct Vent Caps
Cover wall and roof vents to prevent cold air and debris from entering your system
2 products
Fabric Duct and Fittings
Evenly distribute air from fans and blowers through large spaces
12 products
Oval Duct and Fittings
Half the height of rectangular duct to fit into the tightest spaces
11 products
Vibration-Damping Duct Connectors
Reduce shaking and noise from fans and blowers
6 products
Other Products
Duct Blast Gates
Slide open and closed to control flow of air and material
150 products
Diffuser Collars
Connect diffusers to duct
4 products
Chimney Pipe Fittings
Form straight, elbow, and tee connections between lengths of chimney pipe
16 products
Duct Airflow Dampers
Regulate airflow to sections of duct
99 products
Chimney Vent Caps
Cover chimneys to reduce downdrafts and block out debris
21 products
Chimney Pipe
Exhaust hot air and fumes from boilers, furnaces, and stoves
12 products
Duct Fire Dampers
Automatically close at high temperatures to help prevent the spread of fire through duct
13 products
Chimney Roof Flashings
Prevent leaks where chimneys pass through roofs
9 products
Chimney Storm Collars
Pair with chimney roof flashing to prevent leaks where chimneys pass through roofs
12 products
Diffuser Dampers
Regulate the airflow coming out of drop-ceiling diffusers
10 products
Duct Downdraft Diverters
Prevent downdrafts from blowing back into ductwork while allowing air and fumes to vent
8 products
Barometric Draft Dampers
Maintain consistent airflow in your furnace to improve its performance
6 products
Duct Turning Vanes
Guide air smoothly around sharp bends in rectangular duct
4 products
Duct Damper Handles
Replace an existing handle or pair with a blade to create your own damper
1 product
Duct Floor Sweeps
Get dust and debris off your floor and into your collection system
3 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)