PVC Duct Connectors | McMaster-Carr

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	Material Material

Steel

Plastic

	Finish Finish

PVC Coated

	Duct Size Duct Size

	Shape Shape


Straight	Wye

90° Elbow	Tee

45° Elbow

	System of Measurement System of Measurement

Inch

	ID ID

	OD OD

	Component Component

	Number of Mounting Holes Number of Mounting Holes

	Connection Type Connection Type

	Press Fit

	Gender Gender

Male

Female

	Overall Depth Overall Depth

2 1/4"

3 1/4"

3 1/2"

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	End Construction End Construction

Plain

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Flange Height Flange Height

1 3/8"

1 1/2"

1 3/4"

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Mounting Hole Diameter Mounting Hole Diameter

5/16"

	Flange Mount Type Flange Mount Type

Screw On

	Gauge Gauge

	Color Color

	Gray

	Flange Thickness Flange Thickness

1/4"

	Wye Angle Wye Angle

45°

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92 Products

About Duct Connections

A spiral seam makes this duct strong and rigid. Fittings have male ends with a slightly smaller diameter to press-fit into duct.

PVC-coated steel combines the strength of steel with the corrosion resistance of plastic.

For technical drawings and 3-D models, click on a part number.

90° Elbow Connectors

		PVC-Coated Steel
Duct Size	Male OD	Gauge	End Construction		Each
4	3 7/8"	24	Plain	00000000	000000
5	4 7/8"	24	Plain	00000000	00000
6	5 7/8"	24	Plain	00000000	000000
7	6 7/8"	24	Plain	00000000	000000
8	7 7/8"	24	Plain	00000000	000000
9	8 7/8"	24	Plain	00000000	000000
10	9 7/8"	24	Plain	00000000	000000
12	11 7/8"	24	Plain	00000000	000000

45° Elbow Connectors

		PVC-Coated Steel
Duct Size	Male OD	Gauge	End Construction		Each
4	3 7/8"	24	Plain	00000000	000000
5	4 7/8"	24	Plain	00000000	00000
6	5 7/8"	24	Plain	00000000	00000
7	6 7/8"	24	Plain	00000000	00000
8	7 7/8"	24	Plain	00000000	00000
9	8 7/8"	24	Plain	00000000	000000
10	9 7/8"	24	Plain	00000000	000000
12	11 7/8"	24	Plain	00000000	000000

Tee Connectors

Tee connectors join or split runs of duct.

				PVC-Coated Steel
Duct Size	Male OD	Gauge	End Construction		Each
4	3 7/8"	24	Plain	00000000	000000
6	5 7/8"	24	Plain	00000000	00000
8	7 7/8"	24	Plain	00000000	000000
10	9 7/8"	24	Plain	00000000	000000
12	11 7/8"	24	Plain	00000000	000000

45° Wye Connectors

Wye connectors join or split runs of duct.

				PVC-Coated Steel
Duct Size	Male OD	Gauge	End Construction		Each
6	5 7/8"	24	Plain	00000000	0000000
8	7 7/8"	24	Plain	00000000	000000
10	9 7/8"	24	Plain	00000000	000000

Straight Connectors

Male

Male straight connectors are required to connect two pieces of duct.

			PVC-Coated Steel
Duct Size	Male OD	End Construction	Gauge		Each
Male
4	3 7/8"	Plain	26	00000000	000000
5	4 7/8"	Plain	26	00000000	00000
6	5 7/8"	Plain	26	00000000	00000
7	6 7/8"	Plain	26	00000000	00000
8	7 7/8"	Plain	26	00000000	00000
9	8 7/8"	Plain	26	00000000	00000
10	9 7/8"	Plain	26	00000000	00000
12	11 7/8"	Plain	26	00000000	00000

Tee Reducers

Reducers connect duct with different diameters.

Duct Size			Male OD					PVC-Coated Steel
(A)	(B)	(C)	(A)	(B)	(C)	Gauge	End Construction		Each
6	4	6	5 7/8"	3 7/8"	5 7/8"	24	Plain	00000000	000000
8	6	8	7 7/8"	5 7/8"	7 7/8"	24	Plain	00000000	000000
10	8	10	9 7/8"	7 7/8"	9 7/8"	24	Plain	00000000	000000
12	8	12	11 7/8"	7 7/8"	11 7/8"	24	Plain	00000000	000000

45° Wye Reducers

Reducers connect duct with different diameters.

Duct Size			Male OD					PVC-Coated Steel
(A)	(B)	(C)	(A)	(B)	(C)	Gauge	End Construction		Each
6	4	6	5 7/8"	3 7/8"	5 7/8"	24	Plain	00000000	000000
8	6	8	7 7/8"	5 7/8"	7 7/8"	24	Plain	00000000	000000
10	8	10	9 7/8"	7 7/8"	9 7/8"	24	Plain	00000000	000000
12	10	12	11 7/8"	9 7/8"	11 7/8"	24	Plain	00000000	000000

Straight Reducers

Reducers connect duct with different diameters.

Duct Size		Male OD			PVC-Coated Steel
(A)	(B)	(A)	(B)	End Construction	Gauge		Each
5	4	4 7/8"	3 7/8"	Plain	20	00000000	000000
6	4	5 7/8"	3 7/8"	Plain	20	00000000	00000
6	5	5 7/8"	4 7/8"	Plain	20	00000000	00000
7	6	6 7/8"	5 7/8"	Plain	20	00000000	00000
8	6	7 7/8"	5 7/8"	Plain	20	00000000	00000
8	7	7 7/8"	6 7/8"	Plain	20	00000000	00000
9	8	8 7/8"	7 7/8"	Plain	20	00000000	00000
10	8	9 7/8"	7 7/8"	Plain	20	00000000	000000
10	9	9 7/8"	8 7/8"	Plain	20	00000000	000000
12	10	11 7/8"	9 7/8"	Plain	20	00000000	000000

Chemical-Resistant Duct and Fittings

Made of PVC plastic to withstand acids, alkalies, salts, and other corrosive vapors and fumes. Use PVC pipe cement (not included) to secure components. Fittings have female ends with a slightly larger diameter to press-fit over duct.

For technical drawings and 3-D models, click on a part number.

90° Elbow Connectors

			PVC Plastic
Duct Size	Female ID	Color		Each
4	4 1/2"	Gray	0000000	000000
6	6 5/8"	Gray	0000000	000000
8	8 5/8"	Gray	0000000	000000
10	10 3/4"	Gray	0000000	000000
12	12 3/4"	Gray	0000000	000000
14	14"	Gray	0000000	000000

45° Elbow Connectors

			PVC Plastic
Duct Size	Female ID	Color		Each
4	4 1/2"	Gray	00000000	000000
6	6 5/8"	Gray	0000000	00000
8	8 5/8"	Gray	0000000	000000
10	10 3/4"	Gray	0000000	000000
12	12 3/4"	Gray	0000000	000000
14	14"	Gray	0000000	000000

Tee Connectors

Tee connectors join or split runs of duct.

			PVC Plastic
Duct Size	Female ID	Color		Each
4	4 1/2"	Gray	00000000	000000
6	6 5/8"	Gray	00000000	000000
8	8 5/8"	Gray	00000000	000000
10	10 3/4"	Gray	00000000	000000
12	12 3/4"	Gray	00000000	000000
14	14"	Gray	00000000	000000

Straight Connectors

Straight connectors are required to connect two pieces of duct.

			PVC Plastic
Duct Size	Female ID	Color		Each
4	4 1/2"	Gray	00000000	000000
6	6 5/8"	Gray	0000000	00000
8	8 5/8"	Gray	0000000	00000
10	10 3/4"	Gray	0000000	00000
12	12 3/4"	Gray	0000000	00000
14	14"	Gray	0000000	00000

Reducers

Reducers connect duct with different diameters.

Duct Size		Female ID			PVC Plastic
(A)	(B)	(A)	(B)	Color		Each
6	4	6 5/8"	4 1/2"	Gray	0000000	0000000
8	6	8 5/8"	6 5/8"	Gray	0000000	000000
10	8	10 3/4"	8 5/8"	Gray	0000000	000000
12	10	12 3/4"	10 3/4"	Gray	0000000	000000
12	8	12 3/4"	8 5/8"	Gray	00000000	000000
14	10	14"	10 3/4"	Gray	00000000	000000
14	12	14"	12 3/4"	Gray	0000000	000000

45° Wye Saddles

Saddles add a branch to an existing run of duct. Cut a hole in the duct and fit the saddle over the hole.

Duct Size		Female ID			PVC Plastic
(A)	(B)	(A)	(B)	Color		Each
6	8	6 5/8"	8 5/8"	Gray	00000000	0000000
8	10	8 5/8"	10 3/4"	Gray	00000000	000000
10	12	10 3/4"	12 3/4"	Gray	00000000	000000
12	14	12 3/4"	14"	Gray	00000000	000000

Duct Flanges

Bolt flanges to equipment to start a run of duct. They can also create secure connections between two duct ends by mounting a flange to each end and then joining the flanges.

PVC plastic flanges are chemical resistant and withstand harsh environments. They’re compatible with Chemical-Resistant Duct and Fittings.

For technical drawings and 3-D models, click on a part number.

PVC Plastic

			Flange		Mounting				PVC Plastic
Duct Size	Female ID	Overall Dp.	Ht.	Thick.	Fasteners Included	No. of Holes	Hole Dia.	Connection Type		Each
4	4 1/2"	2 1/4"	1 3/4"	1/4"	No	4	5/16"	Press Fit	000000	000000
6	6 5/8"	3 1/4"	1 1/2"	1/4"	No	8	5/16"	Press Fit	0000000	00000
8	8 5/8"	3 1/4"	1 1/2"	1/4"	No	10	5/16"	Press Fit	0000000	00000
10	10 3/4"	3 1/4"	1 3/8"	1/4"	No	12	5/16"	Press Fit	0000000	00000
12	12 3/4"	3 1/2"	1 3/8"	1/4"	No	16	5/16"	Press Fit	0000000	000000
14	14"	3 1/2"	1 3/4"	1/4"	No	16	5/16"	Press Fit	0000000	000000
16	16"	3 1/2"	1 3/4"	1/4"	No	18	5/16"	Press Fit	0000000	000000

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About Duct Connections

Crush-Resistant Spiral Duct and Fittings

Chemical-Resistant Duct and Fittings

Duct Flanges