Stove Pipe | McMaster-Carr

	ID ID

	OD OD

	Material Material

Steel

Stainless Steel

Aluminum

	Component Component

	Duct Size Duct Size

	Connection Type Connection Type

Press Fit

Twist Connect

	Gender Gender

Female

Male

	Gauge Gauge

	Length Length

	End Construction End Construction

Crimped

Plain

	Duct Construction Duct Construction

Open

Closed

	For System Type For System Type

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

DFARS Specialty Metals
COTS-Exempt

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

REACH Compliant

	Chimney Pipe Size Chimney Pipe Size

	Maximum Temperature Maximum Temperature

400° F

1000° F

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

RoHS Compliant

	Overall Width Overall Width

	Overall Height Overall Height

176 Products

About Duct Connections

No need for clamps or connectors—duct and fittings press-fit together. Male ends are crimped or tapered, making them slightly smaller than a female end for simple assembly.

Galvanized steel has good corrosion resistance. Aluminum is more lightweight than steel and stainless steel and has good corrosion resistance. 304 stainless steel is more corrosion resistant than steel and aluminum.

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

Duct

Open Duct

Closed Duct

Open duct can be cut with snips prior to installation. The seam snaps together without tools. Closed duct is stronger than open duct because it has a seam that is already locked in place.

					Galvanized Steel			Aluminum			304 Stainless Steel
Duct Size	Female ID	Male OD	Gauge	End Construction		2 ft.	5 ft.		2 ft.	5 ft.		2 ft.	3 ft.	5 ft.
Open Duct
3	3"	2 7/8"	26	Crimped	0000000	000000	00	0000000	00	000000	000000	00	000000	0000000
4	4"	3 7/8"	__	Crimped	000000	00000	000000	000000	00	00	000000	00	00	00
4	4"	3 7/8"	26	Crimped	000000	00	00	000000	000000	00000	000000	00	00000	000000
5	5"	4 7/8"	26	Crimped	000000	00000	00000	0000000	00000	00	0000000	00	00	000000
6	6"	5 7/8"	26	Crimped	000000	00000	00000	00000000	00000	00000	000000	00	000000	000000
7	7"	6 7/8"	26	Crimped	000000	00000	00000	000000	00	00	000000	00	00	00
8	8"	7 7/8"	26	Crimped	000000	00000	00000	0000000	00	000000	000000	00	000000	000000
9	9"	8 7/8"	26	Crimped	000000	00000	00000	000000	00	00	000000	00	00	00
10	10"	9 7/8"	26	Crimped	000000	00000	00000	000000	00	00	0000000	00	00	000000
12	12"	11 7/8"	26	Crimped	000000	00000	00000	000000	00	00	000000	00	000000	000000
14	14"	13 7/8"	26	Crimped	000000	00000	00000	000000	00	00	000000	00	00	00
16	16"	15 7/8"	26	Crimped	0000000	00000	00	000000	00	00	000000	00	00	00
18	18"	17 7/8"	26	Crimped	0000000	00000	00	000000	00	00	000000	00	00	00
20	20"	19 7/8"	24	Crimped	0000000	000000	00	000000	00	00	000000	00	00	00
22	22"	21 7/8"	24	Crimped	0000000	000000	00	000000	00	00	000000	00	00	00
24	24"	23 7/8"	24	Crimped	0000000	000000	00	000000	00	00	000000	00	00	00
Closed Duct
3	3"	2 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	000000	00	00	00
4	4"	3 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	00000000	0000000	00	00
5	5"	4 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	0000000	000000	00	00
6	6"	5 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	0000000	00000	00	000000
7	7"	6 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	0000000	000000	00	000000
8	8"	7 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	0000000	000000	00	000000
10	10"	9 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	0000000	000000	00	000000
12	12"	11 7/8"	24	Crimped	0000000	00000	00000	000000	00	00	0000000	000000	00	000000

Straight Connectors

Straight connectors wrap around two female duct ends to join them.

				Galvanized Steel
Duct Size	Female ID	Gauge	End Construction		Each
4	4"	30	Plain	0000000	000000
5	5"	30	Plain	0000000	00000
6	6"	30	Plain	0000000	00000
7	7"	30	Plain	0000000	00000
8	8"	30	Plain	0000000	00000
10	10"	28	Plain	0000000	00000
12	12"	26	Plain	0000000	00000

Straight Reducers, Female × Male

Reducers connect duct with different diameters.

Duct Size
(A)	(B)	Female ID (A)	Male OD (B)	End Construction	Gauge		Each
Galvanized Steel
4	3	4"	2 15/16"	Crimped	26	0000000	000000
5	4	5"	3 7/8"	Crimped	26	0000000	00000
6	4	6"	3 15/16"	Crimped	26	0000000	00000
6	5	6"	4 7/8"	Crimped	26	0000000	00000
7	6	7"	5 7/8"	Crimped	26	0000000	00000
8	6	8"	5 15/16"	Crimped	26	0000000	00000
8	7	8"	6 7/8"	Crimped	26	0000000	00000
9	8	9"	7 15/16"	Crimped	26	0000000	00000
10	6	10"	5 7/8"	Crimped	26	0000000	00000
10	7	10"	6 7/8"	Crimped	26	0000000	00000
10	8	10"	7 7/8"	Crimped	26	0000000	00000
12	10	12"	9 7/8"	Crimped	26	0000000	00000
12	6	12"	5 7/8"	Crimped	26	0000000	00000
12	7	12"	6 7/8"	Crimped	26	0000000	00000
12	8	12"	7 7/8"	Crimped	26	0000000	00000
Aluminum
6	4	6"	3 7/8"	Crimped	24	0000000	00000
7	4	7"	3 7/8"	Crimped	24	0000000	00000
304 Stainless Steel
4	3	4"	2 7/8"	Crimped	26	0000000	00000
6	4	6"	3 7/8"	Crimped	26	0000000	00000
8	4	8"	3 7/8"	Crimped	26	0000000	00000
8	6	8"	5 7/8"	Crimped	26	0000000	00000
10	6	10"	5 7/8"	Crimped	26	0000000	000000

Straight Reducers, Male × Female

Reducers connect duct with different diameters.

Duct Size						Galvanized Steel
(A)	(B)	Male OD (A)	Female ID (B)	Gauge	End Construction		Each
6	4	5 7/8"	4"	26	Crimped	0000000	000000
7	6	6 7/8"	6"	26	Crimped	0000000	00000
8	6	7 7/8"	6"	26	Crimped	0000000	00000
8	7	7 7/8"	7"	26	Crimped	0000000	00000
10	6	9 7/8"	6"	26	Crimped	0000000	00000
10	8	9 7/8"	8"	26	Crimped	0000000	00000
12	10	11 7/8"	10"	26	Crimped	0000000	00000
12	6	11 7/8"	6"	26	Crimped	0000000	00000
12	8	11 7/8"	8"	26	Crimped	0000000	00000
14	10	13 7/8"	10"	28	Crimped	0000000	00000
14	12	13 7/8"	12"	28	Crimped	0000000	00000
16	12	15 7/8"	12"	28	Crimped	0000000	00000
16	14	15 7/8"	14"	28	Crimped	0000000	00000
18	16	17 7/8"	16"	26	Crimped	0000000	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.

Galvanized steel has good corrosion resistance. 304 stainless steel is more corrosion resistant than steel.

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

Duct

			Galvanized Steel				304 Stainless Steel
Duct Size	Female ID	End Construction	Gauge		2 ft.	5 ft.	Gauge		2 ft.	5 ft.
3	3"	Plain	26	0000000	00	000000	__	000000	00	00
4	4"	Plain	26	00000000	000000	00000	24	00000000	000000	000000
5	5"	Plain	26	00000000	00000	00000	__	000000	00	00
6	6"	Plain	26	00000000	00000	00000	24	00000000	00000	000000
8	8"	Plain	26	00000000	00000	00000	24	00000000	00000	000000
10	10"	Plain	26	00000000	00000	00000	24	00000000	000000	000000
12	12"	Plain	26	00000000	00000	00000	__	000000	00	00
14	14"	Plain	24	00000000	00000	000000	__	000000	00	00
16	16"	Plain	24	00000000	00000	000000	__	000000	00	00

Straight Connectors

Male

Female

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

Female straight connectors join two fittings.

				Galvanized Steel			304 Stainless Steel
Duct Size	Female ID	Male OD	End Construction	Gauge		Each	Gauge		Each
Male
3	__	2 7/8"	Plain	24	0000000	000000	__	000000	00
4	__	3 7/8"	Plain	24	0000000	00000	24	0000000	000000
5	__	4 7/8"	Plain	24	0000000	00000	__	000000	00
6	__	5 7/8"	Plain	24	0000000	00000	24	0000000	00000
8	__	7 7/8"	Plain	24	0000000	00000	24	0000000	00000
10	__	9 7/8"	Plain	24	0000000	00000	24	0000000	00000
12	__	11 7/8"	Plain	24	0000000	00000	__	000000	00
14	__	13 7/8"	Plain	22	0000000	00000	__	000000	00
16	__	15 7/8"	Plain	22	0000000	00000	__	000000	00
Female
3	3"	__	Plain	24	00000000	0000	__	000000	00
4	4"	__	Plain	24	00000000	0000	__	000000	00
5	5"	__	Plain	24	00000000	0000	__	000000	00
6	6"	__	Plain	24	00000000	0000	__	000000	00
8	8"	__	Plain	24	00000000	0000	__	000000	00
10	10"	__	Plain	24	00000000	00000	__	000000	00
12	12"	__	Plain	24	00000000	00000	__	000000	00
14	14"	__	Plain	22	00000000	00000	__	000000	00
16	16"	__	Plain	22	00000000	00000	__	000000	00

Straight Reducers

Reducers connect duct with different diameters.

Duct Size		Male OD			Galvanized Steel			304 Stainless Steel
(A)	(B)	(A)	(B)	End Construction	Gauge		Each	Gauge		Each
4	3	3 7/8"	2 7/8"	Plain	24	0000000	000000	__	000000	00
5	4	4 7/8"	3 7/8"	Plain	24	0000000	00000	__	000000	00
6	4	5 7/8"	3 7/8"	Plain	24	0000000	00000	20	0000000	000000
6	5	5 7/8"	4 7/8"	Plain	24	0000000	00000	__	000000	00
8	6	7 7/8"	5 7/8"	Plain	24	0000000	00000	20	0000000	000000
10	6	9 7/8"	5 7/8"	Plain	24	0000000	00000	20	0000000	000000
10	8	9 7/8"	7 7/8"	Plain	24	0000000	00000	20	0000000	000000
12	10	11 7/8"	9 7/8"	Plain	24	0000000	00000	__	000000	00
12	6	11 7/8"	5 7/8"	Plain	24	0000000	00000	__	000000	00
12	8	11 7/8"	7 7/8"	Plain	24	0000000	00000	__	000000	00
14	12	13 7/8"	11 7/8"	Plain	24	0000000	00000	__	000000	00
16	14	15 7/8"	13 7/8"	Plain	24	0000000	00000	__	000000	00

Sure-Seal Spiral Duct and Fittings

Fittings have gaskets which create a tight seal—you don't need to seal joints with coating or tape. Fittings have male ends with a slightly smaller diameter to press-fit into duct. These duct and fittings are compatible with Crush-Resistant Spiral Duct and Fittings.

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

Duct

				Galvanized Steel
Duct Size	Female ID	Lg., ft.	Gauge		Each
4	4"	5	26	0000000	000000
6	6"	5	26	0000000	00000
8	8"	5	26	0000000	00000
10	10"	5	26	0000000	00000
12	12"	5	26	0000000	00000

Straight Connectors

Straight connectors are required to connect two pieces of duct.

				Galvanized Steel
Duct Size	Male OD	Gauge	Gasket Material		Each
4	3 7/8"	24	EPDM Rubber	0000000	000000
6	5 7/8"	24	EPDM Rubber	0000000	00000
8	7 7/8"	24	EPDM Rubber	0000000	00000
10	9 7/8"	24	EPDM Rubber	0000000	00000
12	11 7/8"	24	EPDM Rubber	0000000	00000

Reducers

Reducers connect duct with different diameters.

Duct Size		Male OD				Galvanized Steel
(A)	(B)	(A)	(B)	Gauge	Gasket Material		Each
6	4	5 7/8"	3 7/8"	20	EPDM Rubber	0000000	000000
8	6	7 7/8"	5 7/8"	20	EPDM Rubber	0000000	00000
10	6	9 7/8"	5 7/8"	20	EPDM Rubber	0000000	00000
10	8	9 7/8"	7 7/8"	20	EPDM Rubber	0000000	00000
12	10	11 7/8"	9 7/8"	20	EPDM Rubber	0000000	00000
12	8	11 7/8"	7 7/8"	20	EPDM Rubber	0000000	00000

Automatic Airflow Dampers

Save energy and increase comfort by heating and cooling only the areas that need it. Dampers automatically close when signaled by a thermostat or switch (not included).

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

			Overall							Galvanized Steel
Duct Size	Female ID	Male OD	Ht.	Wd.	Gauge	Electrical Connection Type	Voltage	End Construction	Connection Type		Each
5	5"	4 7/8"	9 1/4"	7"	24	Hardwire	24V AC	Crimped	Press Fit	0000000	0000000
6	6"	5 7/8"	10 1/4"	8"	24	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
7	7"	6 7/8"	11 1/4"	9"	24	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
8	8"	7 7/8"	12 1/4"	10"	24	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
9	9"	8 7/8"	13 1/4"	11"	24	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
10	10"	9 7/8"	14 1/4"	12"	24	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
12	12"	11 7/8"	16 1/4"	14"	24	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
14	14"	13 7/8"	18 1/4"	16"	22	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
16	16"	15 7/8"	20 1/4"	18"	22	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
18	18"	17 7/8"	22 1/4"	20"	22	Hardwire	24V AC	Crimped	Press Fit	0000000	000000
20	20"	19 7/8"	24 1/4"	22"	22	Hardwire	24V AC	Crimped	Press Fit	0000000	000000

Gas Chimney Vents and Fittings

For use with gas-fired equipment, such as boilers and furnaces, these vent pipes and fittings withstand temperatures up to 400° F. Also known as type B gas vents.

To join pipes and connectors, insert a male end into a female end and secure with the included locking band.

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

Pipe

								Galvanized Steel
Chimney Pipe Size	Female ID	Male OD	Lg.	Gauge	Construction	Inner Wall Material	Specifications Met		Each
4	4"	4 1/2"	18"	28	Double Wall	Aluminum	UL Listed	0000000	000000
5	5"	5 1/2"	18"	28	Double Wall	Aluminum	UL Listed	0000000	00000
6	6"	6 1/2"	18"	28	Double Wall	Aluminum	UL Listed	0000000	00000
7	7"	8"	18"	28	Double Wall	Aluminum	UL Listed	0000000	00000
8	8"	9"	18"	28	Double Wall	Aluminum	UL Listed	0000000	00000

High-Temperature Chimney Vents and Fittings

Built to withstand temperatures up to 1000° F, these vent pipes and fittings are for use with boilers, furnaces, stoves, and other equipment that is fired by gas, oil, wood, or coal.

To join pipes and connectors, twist a male end into a female end and secure with the included locking band.

Pipe

							304 Stainless Steel
							18" Lg.		36" Lg.
Chimney Pipe Size	Female ID	Male OD	Gauge	Construction	Insulation Thick.	Specifications Met		Each		Each
6	6"	8"	28	Double Wall	1"	UL Listed	0000000	0000000	00000000	0000000
8	8"	10"	28	Double Wall	1"	UL Listed	0000000	000000	00000000	000000
10	10"	12"	28	Double Wall	1"	UL Listed	0000000	000000	00000000	000000
12	12"	14"	28	Double Wall	1"	UL Listed	0000000	000000	00000000	000000

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About Duct Connections

Standard Duct and Fittings

Crush-Resistant Spiral Duct and Fittings

Sure-Seal Spiral Duct and Fittings

Automatic Airflow Dampers

Gas Chimney Vents and Fittings

High-Temperature Chimney Vents and Fittings