McMaster-Carr

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	Trade Size Trade Size

	Material Material

Plastic

Steel

	Shape Shape


Straight	90° Elbow

45° Elbow	Cap

Tee	Wye

	OD OD

	ID ID

	Component Component

	Gauge Gauge

	Gender Gender

Female

Male

	Length Length

5 ft.

10 ft.

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134 Products

About Duct Connections

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.

Duct

			PVC Plastic
Trade Size	Male OD	Color		5 ft.	10 ft.
4	4 1/2"	Gray	00000000	000000	000000
6	6 5/8"	Gray	00000000	00000	000000
8	8 5/8"	Gray	00000000	00000	000000
10	10 3/4"	Gray	00000000	000000	000000
12	12 3/4"	Gray	00000000	000000	000000
14	14"	Gray	00000000	000000	000000

90° Elbow Connectors

			PVC Plastic
Trade Size	Female ID	Color		Each
4	4 1/2"	Gray	0000000	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

45° Elbow Connectors

			PVC Plastic
Trade 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	000000

Tee Connectors

Tee connectors join or split runs of duct.

			PVC Plastic
Trade 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
Trade 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.

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

Airflow Dampers

Airflow dampers regulate airflow.

			PVC Plastic
Trade Size	Female ID	Color		Each
4	4 1/2"	Gray	00000000	0000000
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

Blast Gates

Blast gates stop airflow when closed.

			PVC Plastic
Trade Size	Female ID	Color		Each
4	4 1/2"	Gray	000000	0000000
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

Intake Hoods

Intake hoods exhaust fumes from your work area.

			PVC Plastic
Trade Size	Female ID	Color		Each
4	4 1/2"	Gray	00000000	0000000
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

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.

Trade 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

Rain Caps

			PVC Plastic
Trade Size	Female ID	Color		Each
4	4 1/2"	Gray	000000	0000000
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

End Caps

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

Crush-Resistant Spiral Duct and Fittings

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.

Duct

			PVC-Coated Steel
Trade Size	Female ID	End Construction	Gauge		5 ft.
4	4"	Plain	26	00000000	000000
5	5"	Plain	26	00000000	00000
6	6"	Plain	26	00000000	00000
7	7"	Plain	26	00000000	00000
8	8"	Plain	26	00000000	00000
9	9"	Plain	26	00000000	00000
10	10"	Plain	26	00000000	000000
12	12"	Plain	26	00000000	000000

90° Elbow Connectors

		PVC-Coated Steel
Trade 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	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
Trade 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	00000
10	9 7/8"	24	Plain	00000000	00000
12	11 7/8"	24	Plain	00000000	000000

Tee Connectors

Tee connectors join or split runs of duct.

				PVC-Coated Steel
Trade 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	00000
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
Trade Size	Male OD	Gauge	End Construction		Each
6	5 7/8"	24	Plain	00000000	000000
8	7 7/8"	24	Plain	00000000	00000
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
Trade 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.

Trade 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	00000
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.

Trade 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	00000
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.

Trade 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	00000
10	9	9 7/8"	8 7/8"	Plain	20	00000000	00000
12	10	11 7/8"	9 7/8"	Plain	20	00000000	00000

End Caps

Female × Male

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

Terms and Conditions and Privacy Policy

About Duct Connections

Chemical-Resistant Duct and Fittings

Crush-Resistant Spiral Duct and Fittings

Chemical-Resistant Duct and Fittings

Crush-Resistant Spiral Duct and Fittings