Galvanized Steel Connector Sleeves

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Export Control Classification Number (ECCN)

2B999

EAR99

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107 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.

90° Elbow Connectors

Connectors with welded seams prevent leaks.

Galvanized Steel
Duct Size	Female ID	Male OD	Features	End Construction	Gauge		Each
14	14"	13 7/8"	Welded Seams	Tapered	20	00000000	0000000
16	16"	15 7/8"	Welded Seams	Tapered	20	00000000	000000
18	18"	17 7/8"	Welded Seams	Tapered	20	00000000	000000
20	20"	19 7/8"	Welded Seams	Tapered	20	00000000	000000
22	22"	21 7/8"	Welded Seams	Tapered	20	00000000	000000
24	24"	23 7/8"	Welded Seams	Tapered	20	00000000	000000
Aluminum
3	3"	2 7/8"	Welded Seams	Tapered	20	00000000	000000
5	5"	4 7/8"	Welded Seams	Tapered	20	00000000	000000
7	7"	5 7/8"	Welded Seams	Tapered	20	00000000	000000
10	10"	9 7/8"	Welded Seams	Tapered	20	00000000	000000
12	12"	11 7/8"	Welded Seams	Tapered	20	00000000	000000
14	14"	13 7/8"	Welded Seams	Tapered	20	00000000	000000
304 Stainless Steel
14	14"	13 7/8"	Welded Seams	Tapered	20	00000000	000000
16	16"	15 7/8"	Welded Seams	Tapered	20	00000000	000000
18	18"	17 7/8"	Welded Seams	Tapered	20	00000000	000000
20	20"	19 7/8"	Welded Seams	Tapered	20	00000000	00000000

45° Elbow Connectors

45° Elbow Connector with Welded Seams

Connectors with welded seams prevent leaks.

Galvanized Steel
Duct Size	Female ID	Male OD	Features	End Construction	Gauge		Each
14	14"	13 7/8"	Welded Seams	Tapered	20	00000000	0000000
16	16"	15 7/8"	Welded Seams	Tapered	20	00000000	000000
Aluminum
3	3"	2 7/8"	Welded Seams	Tapered	20	00000000	000000
5	5"	4 7/8"	Welded Seams	Tapered	20	00000000	000000
7	7"	6 7/8"	Welded Seams	Tapered	20	00000000	000000
10	10"	9 7/8"	Welded Seams	Tapered	20	00000000	000000
12	12"	11 7/8"	Welded Seams	Tapered	20	00000000	000000
14	14"	13 7/8"	Welded Seams	Tapered	20	00000000	000000
304 Stainless Steel
14	14"	13 7/8"	Welded Seams	Tapered	20	00000000	000000
16	16"	15 7/8"	Welded Seams	Tapered	20	00000000	000000
18	18"	17 7/8"	Welded Seams	Tapered	20	00000000	000000
20	20"	19 7/8"	Welded Seams	Tapered	20	00000000	000000

Straight Connectors

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

				Galvanized Steel
Duct Size	Female ID	Gauge	End Construction		Each
3	3"	26	Plain	00000000	000000
4	4"	30	Plain	0000000	00000
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
14	14"	26	Plain	00000000	00000
16	16"	26	Plain	00000000	00000
18	18"	26	Plain	00000000	00000
20	20"	26	Plain	00000000	00000
22	22"	26	Plain	00000000	00000
24	24"	26	Plain	00000000	00000

Tee Connectors

Female × Female × Male

Tee connectors join or split runs of duct.

					Galvanized Steel		304 Stainless Steel
Duct Size	Female ID	Male OD	Gauge	End Construction		Each		Each
Female × Female × Male
10	10"	9 7/8"	24	Crimped	000000	00	00000000	0000000
12	12"	11 7/8"	24	Crimped	000000	00	00000000	000000
14	14"	13 7/8"	24	Crimped	000000	00	00000000	000000
16	16"	15 7/8"	24	Crimped	000000	00	00000000	000000
18	18"	17 7/8"	24	Crimped	000000	00	00000000	000000
20	20"	19 7/8"	24	Crimped	00000000	0000000	00000000	000000
22	22"	21 7/8"	22	Crimped	00000000	000000	000000	00
24	24"	23 7/8"	22	Crimped	00000000	000000	000000	00

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
14	10	14"	9 7/8"	Plain	22	00000000	000000
14	12	14"	11 7/8"	Plain	22	00000000	00000
16	12	16"	11 7/8"	Plain	22	00000000	00000
16	14	16"	13 7/8"	Plain	22	00000000	00000
18	14	18"	13 7/8"	Plain	22	00000000	00000
18	16	18"	15 7/8"	Plain	22	00000000	00000
20	16	20"	15 7/8"	Plain	24	00000000	000000
22	18	22"	17 7/8"	Plain	24	00000000	000000
24	20	24"	19 7/8"	Plain	24	00000000	000000
Aluminum
4	3	4"	2 7/8"	Plain	24	00000000	00000
12	10	12"	9 7/8"	Plain	24	00000000	00000
304 Stainless Steel
12	8	12"	7 7/8"	Plain	24	00000000	000000
14	10	14"	9 7/8"	Plain	24	00000000	000000
16	12	16"	11 7/8"	Plain	24	00000000	000000
18	14	18"	13 7/8"	Plain	24	00000000	000000
20	16	20"	15 7/8"	Plain	24	00000000	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
4	3	3 7/8"	3"	24	Plain	00000000	000000
5	4	4 7/8"	4"	24	Plain	00000000	00000
18	14	17 7/8"	14"	24	Plain	00000000	00000
20	18	19 15/16"	18"	24	Crimped	00000000	00000
22	20	21 15/16"	20"	24	Crimped	00000000	00000
24	22	23 15/16"	22"	24	Crimped	00000000	00000

Tee Reducers

Female × Male × Male

Reducers connect duct with different diameters.

Duct Size				Male OD				Galvanized Steel
(A)	(B)	(C)	Female ID (A)	(B)	(C)	Gauge	End Construction		Each
Female × Male × Male
8	6	6	8"	5 7/8"	5 7/8"	24	Plain	00000000	0000000
10	8	8	10"	7 7/8"	7 7/8"	24	Plain	00000000	000000
12	8	8	12"	7 7/8"	7 7/8"	24	Plain	00000000	000000

Quick-Disconnect Duct and Fittings

Join duct and fittings with quick-release clamps for faster disassembly and cleanout than other duct systems.

Galvanized steel has good corrosion resistance.

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

Adjustment Sleeves

Adjustment sleeves extend your duct length. Cut duct, then slide on the sleeve. They include an O-ring for the clamp to grasp.

Adjustment Sleeves
					Galvanized Steel		Replacement O-Rings
Duct Size	ID	Gauge	Max. Sleeve Extension	End Construction		Each		Each
3	3 1/8"	22	7"	Rolled	00000000	000000	00000000	00000
4	3 15/16"	22	7"	Rolled	0000000	00000	00000000	0000
5	4 15/16"	22	7"	Rolled	0000000	00000	00000000	0000
6	6"	22	7"	Rolled	0000000	00000	00000000	0000
7	7"	22	7"	Rolled	00000000	00000	00000000	0000
8	8"	22	7"	Rolled	00000000	00000	00000000	0000
9	9"	22	7"	Rolled	00000000	00000	00000000	0000
10	10"	22	7"	Rolled	00000000	00000	00000000	0000
12	12 1/8"	22	7"	Rolled	00000000	00000	00000000	0000
14	14 1/8"	20	7"	Rolled	00000000	00000	00000000	00000
16	16 1/8"	20	7"	Rolled	00000000	00000	00000000	00000
18	18"	20	7"	Rolled	00000000	00000	00000000	00000
18	18 1/16"	20	7"	Rolled	00000000	00000	00000000	00000
20	20"	20	7"	Rolled	00000000	00000	00000000	00000
22	22"	20	7"	Rolled	00000000	00000	00000000	00000
24	24"	20	7"	Rolled	00000000	000000	00000000	00000

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About Duct Connections

Standard Duct and Fittings

Quick-Disconnect Duct and Fittings