Stainless Steel Duct Elbows

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Adjustable-Angle Elbow

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2B999

EAR99

DFARS Specialty Metals

Seam Construction

92 Products

Duct Type

Standard

Our basic duct for a range of HVAC applications

32 products

Clamp Together

The fastest ductwork to install and disassemble

36 products

Duct Type

Spiral

A continuous seam reinforces duct for strength and long life

24 products

Performance

Quick Disconnect

Disassemble quickly for frequent cleanouts

36 products

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.

Corrosion-Resistant 304 Stainless Steel—The most corrosion-resistant metal duct we sell. It won’t rust or degrade in systems that exhaust chemical fumes or vent heat from industrial ovens and dryers.

					Corrosion-Resistant 304 Stainless Steel
Duct Size	ID	OD	Seam Construction	Ga.		Each



	3	3"	2 7/8"	Welded	20	1768K152	0000000


	4	4"	3 7/8"	Welded	20	17805K73	000000
	5	5"	4 7/8"	Welded	20	17805K74	000000
	6	6"	5 7/8"	Welded	20	17805K75	000000
	7	7"	6 7/8"	Welded	20	17805K76	000000
	8	8"	7 7/8"	Welded	20	17805K77	000000
	10	10"	9 7/8"	Welded	20	17805K78	000000
	12	12"	11 7/8"	Welded	20	17805K79	000000
	14	14"	13 7/8"	Welded	20	1768K223	000000
	16	16"	15 7/8"	Welded	20	1768K224	000000
	18	18"	17 7/8"	Welded	20	1768K225	000000


	20	20"	19 7/8"	Welded	20	1768K226	00000000

45° Elbow Connectors

Welded Seam

Change the direction of airflow when joining lengths of duct.

					Corrosion-Resistant 304 Stainless Steel
Duct Size	ID	OD	Seam Construction	Ga.		Each



	3	3"	2 7/8"	Welded	20	1768K154	0000000


	4	4"	3 7/8"	Welded	20	17805K53	000000
	5	5"	4 7/8"	Welded	20	17805K54	000000
	6	6"	5 7/8"	Welded	20	17805K55	000000
	7	7"	6 7/8"	Welded	20	17805K56	000000
	8	8"	7 7/8"	Welded	20	17805K57	000000
	10	10"	9 7/8"	Welded	20	17805K58	000000
	12	12"	11 7/8"	Welded	20	17805K59	000000
	14	14"	13 7/8"	Welded	20	1768K227	000000
	16	16"	15 7/8"	Welded	20	1768K228	000000
	18	18"	17 7/8"	Welded	20	1768K229	000000


	20	20"	19 7/8"	Welded	20	1768K231	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.

				Corrosion-Resistant 304 Stainless Steel
Duct Size	ID	OD	Ga.		Each



	3	3"	2 7/8"	26	1767K21	000000


	4	4"	3 7/8"	26	1767K22	00000
	5	5"	4 7/8"	26	1767K23	00000
	6	6"	5 7/8"	26	1767K24	00000
	7	7"	6 7/8"	26	1767K25	00000
	8	8"	7 7/8"	26	1767K26	000000
	10	10"	9 7/8"	26	1767K27	000000
	12	12"	11 7/8"	26	1767K28	000000

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.

		Corrosion-Resistant 304 Stainless Steel
Duct Size	ID	Ga.		Each



	3	3 1/16"	14	2538K504	0000000


	4	3 7/8"	14	2538K732	000000
	5	4 7/8"	14	2538K733	000000
	6	5 7/8"	14	2538K734	000000
	7	6 7/8"	22	2538K735	000000
	8	7 7/8"	22	2538K144	000000
	9	8 7/8"	22	2538K736	000000
	10	9 7/8"	22	2538K145	000000
	12	12"	22	2538K146	000000
	14	13 15/16"	20	2538K655	000000
	16	16"	20	2538K656	000000


	18	17 15/16"	20	2538K512	000000
	20	19 15/16"	20	2538K513	00000000

45° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

		Corrosion-Resistant 304 Stainless Steel
Duct Size	ID	Ga.		Each



	3	3 1/16"	14	2538K505	0000000


	4	3 7/8"	14	2538K737	000000
	5	4 7/8"	14	2538K738	000000
	6	5 7/8"	14	2538K739	000000
	7	6 7/8"	22	2538K741	000000
	8	7 7/8"	22	2538K154	000000
	10	9 7/8"	22	2538K155	000000
	12	12"	22	2538K156	000000
	14	13 15/16"	20	2538K657	000000
	16	16"	20	2538K658	000000
	18	17 15/16"	20	2538K514	000000


	20	19 15/16"	20	2538K515	000000

30° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

		Corrosion-Resistant 304 Stainless Steel
Duct Size	ID	Ga.		Each



	3	3 1/16"	14	2538K518	0000000


	4	3 7/8"	14	2538K743	000000
	5	4 7/8"	14	2538K744	000000
	6	5 7/8"	14	2538K745	000000
	8	7 7/8"	22	2538K164	000000
	10	9 7/8"	22	2538K165	000000
	12	12"	22	2538K166	000000
	14	13 15/16"	20	2538K431	000000
	16	16"	20	2538K432	000000
	18	17 15/16"	20	2538K519	000000
	20	19 15/16"	20	2538K521	000000

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.

		Corrosion-Resistant 304 Stainless Steel
Duct Size	OD	Ga.		Each
3	2 7/8"	20	2561K151	0000000
4	3 7/8"	20	2561K15	000000
5	4 7/8"	20	2561K155	000000
6	5 7/8"	20	2561K16	000000
7	6 7/8"	20	2561K153	000000
8	7 7/8"	20	2561K17	000000
9	8 7/8"	24	2561K157	000000
10	9 7/8"	20	2561K18	000000
12	11 7/8"	24	2561K162	000000
14	13 7/8"	24	2561K164	000000
16	15 7/8"	24	2561K166	000000
18	17 7/8"	24	2561K159	000000

45° Elbow Connectors

Change the direction of airflow when joining lengths of duct.

		Corrosion-Resistant 304 Stainless Steel
Duct Size	OD	Ga.		Each
3	2 7/8"	20	2561K152	000000
4	3 7/8"	20	2561K19	000000
5	4 7/8"	20	2561K156	000000
6	5 7/8"	20	2561K21	000000
7	6 7/8"	20	2561K154	000000
8	7 7/8"	20	2561K22	000000
9	8 7/8"	24	2561K158	000000
10	9 7/8"	20	2561K23	000000
12	11 7/8"	24	2561K163	000000
14	13 7/8"	24	2561K165	000000
16	15 7/8"	24	2561K167	000000
18	17 7/8"	24	2561K161	000000