Galvanized Steel Duct Elbows

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Standard Duct and Fittings

Deliver air for a range of HVAC applications, including exhaust and dust collection. Our basic duct, the round shape creates smoother, more efficient airflow than rectangular and oval duct. The male end is slightly smaller than the female, so sections join without clamps or tools.

90° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

					Galvanized Steel
Duct Size	ID	OD	Seam Construction	Ga.		Each



	3	3"	2 7/8"	Welded	20	1768K88	0000000


	4	4"	3 7/8"	Welded	20	1768K89	000000
	5	5"	4 7/8"	Welded	20	1768K91	000000
	6	6"	5 7/8"	Welded	20	1768K92	000000
	7	7"	6 7/8"	Welded	20	1768K93	000000
	8	8"	7 7/8"	Welded	20	1768K94	000000
	10	10"	9 7/8"	Welded	20	1768K95	000000
	12	12"	11 7/8"	Welded	20	1768K96	000000
	14	14"	13 7/8"	Welded	20	1768K207	000000
	16	16"	15 7/8"	Welded	20	1768K208	000000
	18	18"	17 7/8"	Welded	20	1768K209	000000


	20	20"	19 7/8"	Welded	20	1768K218	000000
	22	22"	21 7/8"	Welded	20	1768K219	000000
	24	24"	23 7/8"	Welded	20	1768K221	000000

45° Elbow Connectors


Welded Seam	Riveted Seam

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

					Galvanized Steel
Duct Size	ID	OD	Seam Construction	Ga.		Each



	3	3"	2 7/8"	Welded	20	1768K71	000000


	4	4"	3 7/8"	Welded	20	1768K72	000000
	5	5"	4 7/8"	Welded	20	1768K73	000000
	6	6"	5 7/8"	Welded	20	1768K74	000000
	7	7"	6 7/8"	Welded	20	1768K75	000000
	8	8"	7 7/8"	Welded	20	1768K76	000000
	10	10"	9 7/8"	Welded	20	1768K77	000000
	12	12"	11 7/8"	Welded	20	1768K78	000000
	14	14"	13 7/8"	Welded	20	1768K211	000000
	16	16"	15 7/8"	Welded	20	1768K212	000000
	18	18"	17 7/8"	Riveted	24	1766K883	000000


	20	20"	19 7/8"	Riveted	24	1766K884	000000
	22	22"	21 7/8"	Riveted	24	1766K231	000000
	24	24"	23 7/8"	Riveted	24	1766K889	000000

Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 90°)

Image of Product. Front orientation. Duct and Fittings. Standard Duct and Fittings, Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 90°).

Use these connectors as an angled or straight link between pieces of duct. Adjust the shape by twisting the segments.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
Duct Size	ID	OD	Ga.		Each



	3	3"	2 7/8"	26	1766K31	000000


	4	4"	3 7/8"	26	1766K32	00000
	5	5"	4 7/8"	26	1766K33	00000
	6	6"	5 7/8"	26	1766K34	00000
	7	7"	6 7/8"	26	1766K35	00000
	8	8"	7 7/8"	26	1766K36	00000
	9	9"	8 7/8"	26	1766K37	00000
	10	10"	9 7/8"	26	1766K38	00000
	12	12"	11 7/8"	26	1766K39	00000
	14	14"	13 7/8"	24	1766K41	00000
	16	16"	15 7/8"	24	1766K42	000000


	18	18"	17 7/8"	24	1766K43	000000
	20	20"	19 7/8"	24	1766K44	000000
	24	24"	23 7/8"	24	1766K46	000000

Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 45°)

Image of Product. Front orientation. Duct and Fittings. Standard Duct and Fittings, Adjustable-Angle-Elbow Connectors (Adjusts from Straight to 45°).

Use these connectors as an angled or straight link between pieces of duct. Adjust the shape by twisting the segments.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
Duct Size	ID	OD	Ga.		Each



	3	3"	2 7/8"	26	1766K871	000000


	4	4"	3 7/8"	26	1766K872	00000
	5	5"	4 7/8"	26	1766K873	00000
	6	6"	5 7/8"	26	1766K874	00000
	7	7"	6 7/8"	26	1766K875	00000
	8	8"	7 7/8"	26	1766K876	00000
	9	9"	8 7/8"	26	1766K877	00000
	10	10"	9 7/8"	26	1766K878	00000
	12	12"	11 7/8"	26	1766K879	00000
	14	14"	13 7/8"	24	1766K881	00000
	16	16"	15 7/8"	24	1766K882	00000

Ball Joints

Swivel these joints to change the direction of a duct run. They’re commonly used in dust extraction systems to position equipment such as exhaust hoods.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
Duct Size	ID	OD	Ga.		Each



	3	3"	2 7/8"	20	1790K21	0000000


	4	4"	3 7/8"	20	1790K22	000000
	5	5"	4 7/8"	20	1790K23	000000
	6	6"	5 7/8"	20	1790K24	000000
	8	8"	7 7/8"	18	1790K26	000000
	10	10"	9 7/8"	18	1790K28	000000

90° Elbow Collars

Add a 90° branch from your rectangular system to connect to equipment that uses round duct. To install, cut a hole in your duct and attach the collar by bending the tabs. Then, connect a piece of round duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

			Galvanized Steel
	Duct Size	OD	Ga.		Each
Male



		5	4 7/8"	30	2015K26	000000


		6	5 7/8"	30	2015K44	00000
		7	6 7/8"	30	2015K27	00000
		8	7 7/8"	30	2015K28	00000

90° Elbow Register Boots

Create an angled airflow path from duct to vents or registers. These boots are commonly used with heating and cooling systems to deliver air through walls and ceilings.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Opening			Galvanized Steel
Duct Size	ID	Wd.	Lg.	Ga.		Each



	6	6"	2 1/4"	10"	30	1844K14	000000


	6	6"	2 1/4"	12"	30	1844K15	00000
	6	6"	4"	10"	30	1844K17	00000
	6	6"	4"	12"	30	1844K21	00000

Quick-Disconnect Duct and Fittings

The fastest ductwork to disassemble for dust collection and other frequently cleaned systems. Join sections with quick-release clamps that open and close with a flip of the latch. Since you don’t need screws, welds, or tools, the installation time is half that of other duct types.

90° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Galvanized Steel
Duct Size	ID	Ga.		Each



	3	2 7/8"	24	1761K653	000000


	4	3 7/8"	24	1761K42	00000
	5	4 7/8"	24	1761K43	000000
	6	5 7/8"	24	1761K44	000000
	7	6 7/8"	24	1761K607	000000
	8	7 7/8"	22	1761K147	000000
	8	7 7/8"	14	1761K291	000000
	9	8 7/8"	22	1761K608	000000
	9	8 7/8"	14	1761K293	000000
	10	9 7/8"	22	1761K148	000000
	10	9 7/8"	14	1761K295	000000


	12	12"	22	1761K149	000000
	12	12"	14	1761K297	000000
	14	13 15/16"	20	1761K125	000000
	14	13 15/16"	14	1761K299	000000
	16	16"	20	1761K126	000000
	16	16"	14	1761K312	000000
	18	17 7/8"	20	1761K654	000000
	18	17 15/16"	14	1761K314	000000
	20	19 7/8"	20	1761K693	000000
	20	19 15/16"	14	1761K316	000000


	22	21 7/8"	20	1761K694	000000
	22	22"	14	1761K336	00000000
	24	23 7/8"	20	1761K695	000000
	24	23 15/16"	14	1761K338	00000000

45° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Galvanized Steel
Duct Size	ID	Ga.		Each



	3	2 7/8"	24	1761K655	000000


	4	3 7/8"	24	1761K424	00000
	5	4 7/8"	24	1761K435	00000
	6	5 7/8"	24	1761K446	000000
	7	6 7/8"	24	1761K609	000000
	8	7 7/8"	22	1761K157	000000
	8	7 7/8"	14	1761K292	000000
	9	8 7/8"	22	1761K611	000000
	9	8 7/8"	14	1761K294	000000
	10	9 7/8"	22	1761K158	000000
	10	9 7/8"	14	1761K296	000000


	12	12"	22	1761K159	000000
	12	12"	14	1761K298	000000
	14	13 15/16"	20	1761K131	000000
	14	13 15/16"	14	1761K311	000000
	16	16"	20	1761K132	000000
	16	16"	14	1761K313	000000
	18	17 7/8"	20	1761K675	000000
	18	17 15/16"	14	1761K315	000000
	20	19 7/8"	20	1761K676	000000
	20	19 15/16"	14	1761K317	000000


	22	21 7/8"	20	1761K677	000000
	22	22"	14	1761K337	000000
	24	23 7/8"	20	1761K678	000000
	24	23 15/16"	14	1761K339	000000

30° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Galvanized Steel
Duct Size	ID	Ga.		Each



	3	3 1/16"	24	1761K361	000000


	4	3 7/8"	24	1761K427	00000
	5	4 7/8"	24	1761K438	00000
	6	5 7/8"	24	1761K449	000000
	7	6 7/8"	24	1761K612	000000
	8	7 7/8"	22	1761K167	000000
	9	8 7/8"	22	1761K613	000000
	10	9 7/8"	22	1761K168	000000
	12	12"	22	1761K169	000000
	14	13 15/16"	20	1761K241	000000
	16	16"	20	1761K242	000000


	18	17 15/16"	20	1761K362	000000
	20	19 15/16"	20	1761K363	000000
	22	22"	20	1761K364	000000
	24	23 15/16"	20	1761K365	000000

Ball Joints

Swivel these joints to change the direction of a duct run. They’re commonly used in dust extraction systems to position equipment such as exhaust hoods.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

			Galvanized Steel
Duct Size	ID	Ga.		Each



	4	3 7/8"	20	1761K639	0000000


	5	4 7/8"	20	1761K641	000000
	6	5 7/8"	20	1761K642	000000
	7	6 7/8"	20	1761K643	000000
	8	7 7/8"	18	1761K644	000000
	9	8 7/8"	18	1761K645	000000
	10	9 7/8"	18	1761K647	000000
	12	12"	16	1761K648	000000
	14	13 15/16"	14	1761K649	00000000

Spiral Duct and Fittings

Reinforced with a continuous seam, this duct keeps its shape, even against suction from dust collection systems. On the inside, duct is smooth for efficient airflow. Because of its attractive look, spiral duct is often used for exposed heating and cooling systems.

90° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Galvanized Steel
Duct Size	OD	Ga.		Each
3	2 7/8"	24	5078K23	000000
4	3 7/8"	24	5078K24	00000
5	4 7/8"	24	5078K26	00000
6	5 7/8"	24	5078K27	00000
7	6 7/8"	24	5078K301	00000
8	7 7/8"	24	5078K29	00000
9	8 7/8"	22	5078K302	000000
10	9 7/8"	24	5078K31	000000
12	11 7/8"	24	5078K32	000000
14	13 7/8"	24	5078K87	000000
16	15 7/8"	24	5078K89	000000
18	17 7/8"	24	5078K303	000000
20	19 7/8"	24	5078K304	000000
22	21 7/8"	22	5078K305	000000
24	23 7/8"	22	5078K306	000000

45° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Galvanized Steel
Duct Size	OD	Ga.		Each
3	2 7/8"	24	5078K771	000000
4	3 7/8"	24	5078K772	00000
5	4 7/8"	24	5078K773	00000
6	5 7/8"	24	5078K774	00000
7	6 7/8"	24	5078K307	00000
8	7 7/8"	24	5078K776	00000
9	8 7/8"	24	5078K308	000000
10	9 7/8"	24	5078K778	00000
12	11 7/8"	24	5078K779	00000
14	13 7/8"	24	5078K781	000000
16	15 7/8"	24	5078K782	000000
18	17 7/8"	24	5078K309	000000
20	19 7/8"	24	5078K311	000000
22	21 7/8"	24	5078K312	000000
24	23 7/8"	24	5078K313	000000

Tight-Seal Spiral Duct and Fittings

Gasketed fittings prevent leaks between connections without the need for tape or other sealants. Duct has a continuous seam that reinforces it for strength and long life. The rigid construction keeps its shape, even against suction from dust collectors. Duct is smooth on the inside for efficient airflow. Because of its attractive look, spiral duct is often used for exposed heating and cooling systems.

90° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Galvanized Steel with EPDM Gasket
Duct Size	OD	Ga.		Each
4	3 7/8"	24	2226K11	000000
6	5 7/8"	24	2226K12	00000
8	7 7/8"	24	2226K13	00000
10	9 7/8"	24	2226K14	00000
12	11 7/8"	24	2226K43	00000

45° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Galvanized Steel with EPDM Gasket
Duct Size	OD	Ga.		Each
4	3 7/8"	24	2226K15	000000
6	5 7/8"	24	2226K16	00000
8	7 7/8"	24	2226K17	00000
10	9 7/8"	24	2226K18	00000
12	11 7/8"	24	2226K44	00000

Rectangular Duct and Fittings

Maximize the space in close quarters, such as inside walls and ceilings. As rectangular duct sizes increase, they get wider but not taller. This shape is most often used for heating and cooling inside buildings. Components connect with brackets.

90° Elbow Connectors

Horizontal Elbow

Vertical Elbow

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
	Wd.	Ht.	Ga.		Each
Horizontal Elbow



		8"	8"	28	1964K31	000000


		10"	8"	28	1964K32	00000
		12"	8"	28	1964K33	00000
		14"	8"	28	1964K34	00000
		16"	8"	26	1964K35	00000
		20"	8"	26	1964K36	00000
		24"	8"	26	1964K37	00000


		Vertical Elbow



				8"	8"	28	1964K51	00000


				10"	8"	28	1964K52	00000
				12"	8"	28	1964K53	00000
				14"	8"	28	1964K54	00000
				16"	8"	26	1964K55	00000
				20"	8"	26	1964K56	00000
				24"	8"	26	1964K57	00000

45° Elbow Connectors

Horizontal Elbow

Vertical Elbow

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

				Galvanized Steel
	Wd.	Ht.	Ga.		Each
Horizontal Elbow



		8"	8"	28	1964K21	000000


		10"	8"	28	1964K22	00000
		12"	8"	28	1964K23	00000
		14"	8"	28	1964K24	00000


		Vertical Elbow



				8"	8"	28	1964K41	00000


				10"	8"	28	1964K42	00000
				12"	8"	28	1964K43	00000
				14"	8"	28	1964K44	00000

Gas Chimney Vent Pipe 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.

Adjustable-Angle Connectors, 45° Elbow to Straight

Image of Product. Front orientation. Chimney Pipe and Fittings. Gas Chimney Vent Pipe and Fittings, Adjustable-Angle Connectors, 45° Elbow to Straight.

Adjustable-angle elbow connectors can be used at an angle or straight.

								Galvanized Steel
	Chimney Pipe Size	Female ID	Male OD	Ga.	Construction	Inner Wall Material	Certification		Each
Female × Male



		7	7"	8"	28	Double Wall	Aluminum	UL Listed	2117K25	000000


		8	8"	9"	28	Double Wall	Aluminum	UL Listed	2117K26	00000

Adjustable-Angle Connectors, 60° Elbow to Straight

Image of Product. Front orientation. Chimney Pipe and Fittings. Gas Chimney Vent Pipe and Fittings, Adjustable-Angle Connectors, 60° Elbow to Straight.

Adjustable-angle elbow connectors can be used at an angle or straight.

								Galvanized Steel
	Chimney Pipe Size	Female ID	Male OD	Ga.	Construction	Inner Wall Material	Certification		Each
Female × Male



		4	4"	4 1/2"	28	Double Wall	Aluminum	UL Listed	2117K27	000000


		5	5"	5 1/2"	28	Double Wall	Aluminum	UL Listed	2117K28	00000
		6	6"	6 1/2"	28	Double Wall	Aluminum	UL Listed	2117K29	00000

Oval Duct and Fittings

When rectangular duct is too large, oval duct fits into the tightest spaces. It’s about half the height of rectangular duct and the shape creates more efficient airflow. Components press-fit together.

90° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

	Female End		Male End			Galvanized Steel
Duct Size	Oval Wd.	Oval Ht.	Oval Wd.	Oval Ht.	Ga.		Each



	6	7 1/2"	3 1/4"	7 3/8"	3 1/8"	30	4354N21	00000


	7	9 1/8"	3 3/4"	9"	3 5/8"	30	4354N22	00000
	8	10 7/8"	3 1/2"	10 5/8"	3 3/8"	30	4354N23	00000

90° Elbow Adapters

Transition from oval to round duct while changing airflow direction.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

		Female End				Galvanized Steel
	Duct Size	Oval Wd.	Oval Ht.	ID	Ga.		Each
Oval Duct to Standard Duct Adapter



		6	7 1/2"	3 1/4"	6"	30	4354N31	000000


		7	9 1/8"	3 3/4"	7"	30	4354N32	00000
		8	10 7/8"	3 1/2"	8"	30	4354N33	00000

90° Elbow Register Boots

Create an angled airflow path from duct to vents or registers. These boots are commonly used with heating and cooling systems to deliver air through walls and ceilings.

Galvanized Steel—Corrosion resistant and affordable, galvanized steel is the most commonly used ductwork material.

	Female End		Opening			Galvanized Steel
Duct Size	Oval Wd.	Oval Ht.	Wd.	Lg.	Ga.		Each



	6	7 1/2"	3 1/4"	4"	10"	28	4354N41	000000


	7	9 1/8"	3 3/4"	4"	10"	28	4354N42	00000