Louver Plates | McMaster-Carr

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157 Products

Louvers for Enclosures

Relieve heat buildup and prevent condensation from forming inside enclosures and other small spaces.

Surface Mount

Surface

Mount

Gray Powder-Coated Steel Frame and Blades—Powder-coated steel louvers are rugged and durable.

316 Stainless Steel Frame and Blades—316 stainless steel louvers are rugged and durable.

	For Opening		Overall				Mounting
	Wd.	Ht.	Wd.	Ht.	Blade Thk.	No. of Panels	Fasteners Included	Hole Dia.		Each
Gray Powder-Coated Steel Frame and Blades







				Standard Louver Collar

				1 3/4"	2"	3 1/4"	3 1/4"	0.075"	1	Yes	7/32"	1667T34	000000


				3"	2 5/8"	4 1/2"	3 7/8"	0.075"	1	Yes	7/32"	1667T36	00000
				3"	3 1/2"	4 1/2"	4 3/4"	0.075"	1	Yes	7/32"	1667T51	00000
				4"	3 1/4"	5 1/2"	4 1/2"	0.075"	1	Yes	7/32"	1667T38	00000
				4"	4 3/8"	5 1/2"	5 5/8"	0.075"	1	Yes	7/32"	1667T55	00000
				6"	4 3/8"	7 1/2"	5 5/8"	0.075"	1	Yes	7/32"	1667T59	00000
				6"	6 5/8"	7 1/2"	7 7/8"	0.075"	1	Yes	7/32"	1667T62	00000
				8"	4 9/16"	9 1/2"	5 13/16"	0.075"	1	Yes	7/32"	1667T43	00000
				8"	6 15/16"	9 1/2"	8 3/16"	0.075"	1	Yes	7/32"	1667T45	00000
				8"	9 5/16"	9 1/2"	10 9/16"	0.075"	1	Yes	7/32"	1667T68	00000
				8"	14 1/16"	9 1/2"	15 5/16"	0.075"	1	Yes	7/32"	1667T47	00000


				316 Stainless Steel Frame and Blades







								Standard Louver Collar

								1 3/4"	2"	3 1/4"	3 1/4"	0.075"	1	Yes	7/32"	1667T71	000000


								3"	2 5/8"	4 1/2"	3 7/8"	0.075"	1	Yes	7/32"	1667T73	000000
								3"	3 1/2"	4 1/2"	4 3/4"	0.075"	1	Yes	7/32"	1667T75	000000
								4"	3 1/4"	5 1/2"	4 1/2"	0.075"	1	Yes	7/32"	1667T77	000000
								4"	4 3/8"	5 1/2"	5 5/8"	0.075"	1	Yes	7/32"	1667T79	000000
								6"	4 3/8"	7 1/2"	5 5/8"	0.075"	1	Yes	7/32"	1667T82	000000
								6"	6 5/8"	7 1/2"	7 7/8"	0.075"	1	Yes	7/32"	1667T84	000000
								8"	4 9/16"	9 1/2"	5 13/16"	0.075"	1	Yes	7/32"	1667T86	000000
								8"	6 15/16"	9 1/2"	8 3/16"	0.075"	1	Yes	7/32"	1667T88	000000
								8"	9 5/16"	9 1/2"	10 9/16"	0.075"	1	Yes	7/32"	1667T91	000000
								8"	14 1/16"	9 1/2"	15 5/16"	0.075"	1	Yes	7/32"	1667T93	000000

Flush Mount


White Plastic Frame and Blades	Aluminum Frame and Blades	Anodized Aluminum Frame and Blades

Black Anodized Aluminum Frame and Blades	White Powder-Coated Aluminum Frame and Blades	Flush Mount

Aluminum Frame and Blades—All aluminum louvers have small openings between their blades to stop bugs from getting inside your enclosure.

Anodized Aluminum Frame and Blades—All aluminum louvers have small openings between their blades to stop bugs from getting inside your enclosure. Anodized aluminum louvers withstand corrosion better than unfinished and powder-coated aluminum louvers. They’re good for settings such as saltwater environments.

Black Anodized Aluminum Frame and Blades—All aluminum louvers have small openings between their blades to stop bugs from getting inside your enclosure. Black anodized aluminum louvers withstand corrosion better than unfinished and powder-coated aluminum louvers. They’re good for settings such as saltwater environments.

White Powder-Coated Aluminum Frame and Blades—All aluminum louvers have small openings between their blades to stop bugs from getting inside your enclosure.

Darkroom Environments—Darkroom louvers have a shield on the back that blocks out light—use them where light control is a concern.

		Overall
	For Opening Dia.	Dia.	Dp.	For Min. Wall Thk.	For Max. Wall Thk.	Blade Thk.	No. of Panels	Mounting Fasteners Included	Pkg. Qty.		Pkg.
White Plastic Frame and Blades







				Standard Louver Collar

				2"	2 1/2"	1"	1/8"	—	0.07"	1	No	1	2016K23	00000


				3"	3 1/2"	1"	1/8"	—	0.07"	1	No	1	2016K25	0000
				4"	4 1/2"	1"	1/8"	—	0.07"	1	No	1	2016K26	0000


				Aluminum Frame and Blades







								Standard Louver Collar

								1"	1 1/4"	3/8"	1/8"	—	0.015"	1	No	12	2016K1	00000


								1 1/2"	1 3/4"	3/8"	1/8"	—	0.015"	1	No	12	2016K2	00000
								2"	2 1/2"	1/2"	1/8"	—	0.015"	1	No	12	2016K3	00000
								2 1/2"	3"	5/8"	1/8"	—	0.015"	1	No	1	2016K4	0000
								3"	3 1/2"	5/8"	1/8"	—	0.015"	1	No	1	2016K35	0000
								4"	4 1/2"	3/4"	1/8"	—	0.015"	1	No	1	2016K36	0000




										Tabbed Louver Collar

										1"	1 1/8"	3/8"	—	1/8"	0.015"	1	No	1	2016K66	0000


										1 1/2"	1 3/4"	3/8"	—	1/8"	0.015"	1	No	1	2016K67	0000
										2"	2 3/8"	1/2"	—	1/8"	0.015"	1	No	1	2016K68	0000
										2 1/2"	2 15/16"	5/8"	—	1/8"	0.015"	1	No	1	2016K69	0000
										3"	3 1/2"	5/8"	—	1/8"	0.015"	1	No	1	2016K71	0000
										4"	4 1/2"	3/4"	—	1/8"	0.015"	1	No	1	2016K72	0000


										Anodized Aluminum Frame and Blades







														Standard Louver Collar

														1"	1 1/8"	3/8"	1/8"	—	0.015"	1	No	1	2016K59	0000


														1 1/2"	1 3/4"	3/8"	1/8"	—	0.015"	1	No	1	2016K61	0000
2"														2 3/8"	1/2"	1/8"	—	0.015"	1	No	1	2016K62	0000
2 1/2"	2 15/16"													5/8"	1/8"	—	0.015"	1	No	1	2016K63	0000
3"	3 1/2"													5/8"	1/8"	—	0.015"	1	No	1	2016K64	0000
4"	4 1/2"													3/4"	1/8"	—	0.015"	1	No	1	2016K65	0000




		Tabbed Louver Collar

		1"	1 1/8"											3/8"	—	1/8"	0.015"	1	No	1	2016K73	0000


		1 1/2"	1 3/4"											3/8"	—	1/8"	0.015"	1	No	1	2016K74	0000
		2"	2 3/8"											1/2"	—	1/8"	0.015"	1	No	1	2016K75	0000
		2 1/2"	2 15/16"											5/8"	—	1/8"	0.015"	1	No	1	2016K76	0000
		3"	3 1/2"											5/8"	—	1/8"	0.015"	1	No	1	2016K77	0000
		4"	4 1/2"											3/4"	—	1/8"	0.015"	1	No	1	2016K78	0000


		Black Anodized Aluminum Frame and Blades







						Standard Louver Collar

						1"	1 1/8"							3/8"	1/8"	—	0.015"	1	No	1	2016K53	0000


						1 1/2"	1 3/4"							3/8"	1/8"	—	0.015"	1	No	1	2016K54	0000
						2"	2 3/8"							1/2"	1/8"	—	0.015"	1	No	1	2016K55	0000
						2 1/2"	2 15/16"							5/8"	1/8"	—	0.015"	1	No	1	2016K56	0000
						3"	3 1/2"							5/8"	1/8"	—	0.015"	1	No	1	2016K57	0000
						4"	4 1/2"							3/4"	1/8"	—	0.015"	1	No	1	2016K58	0000




								Standard Louver Collar—Darkroom Environments

								4"	4 1/2"					3/4"	1/8"	—	0.015"	1	No	1	2016K9	00000


								White Powder-Coated Aluminum Frame and Blades







																Standard Louver Collar

										1"	1 1/4"					3/8"	1/8"	—	0.015"	1	No	12	2016K11	00000


										1 1/2"	1 3/4"					3/8"	1/8"	—	0.015"	1	No	1	2016K79	0000
										2"	2 1/2"	1/2"				1/8"	—	0.015"	1	No	1	2016K43	0000
										2 1/2"	2 15/16"	5/8"	1/8"			—	0.015"	1	No	1	2016K52	0000
										3"	3 1/2"	5/8"	1/8"			—	0.015"	1	No	1	2016K45	0000
										4"	4 1/2"	3/4"	1/8"			—	0.015"	1	No	1	2016K46	0000

Weather-Resistant Louvers for Enclosures

With a gasketed sealing kit, these louvers shield your enclosure from dirt, moisture, and weather while regulating heat and stopping condensation from forming inside. All have an aluminum mesh filter that keeps out solid debris and water.

1 Panel


	Surface Mount	Replacement Louver Filters

Stainless Steel Frame and Blades—Stainless steel louvers stand up to corrosion better than powder-coated steel louvers.

	Louvers														Replacement Louver Filters
	For Opening		Overall			Mounting
	Wd.	Ht.	Wd.	Ht.	Blade Thk.	Profile	Fasteners Included	Hole Dia.	For Use Outdoors	Enclosure Rating	Certification	Includes		Each		Each
Gray Powder-Coated Steel Frame and Blades



		2 3/4"	3"	5 5/16"	5 9/16"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N11	000000	5708N711	000000


		3 3/4"	2 7/8"	6 5/16"	5 5/16"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N12	00000	5708N712	00000
		3 3/4"	4"	6 5/16"	6 3/8"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N13	00000	5708N713	00000


		Stainless Steel Frame and Blades



				2 3/4"	3"	5 5/16"	5 9/16"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N21	000000	5708N711	00000


				3 3/4"	2 7/8"	6 5/16"	5 5/16"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N22	000000	5708N712	00000
				3 3/4"	4"	6 5/16"	6 3/8"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N23	000000	5708N713	00000

2 Panels


	Surface Mount	Replacement Louver Filters

	Louvers														Replacement Louver Filters
	For Opening		Overall			Mounting
	Wd.	Ht.	Wd.	Ht.	Blade Thk.	Profile	Fasteners Included	Hole Dia.	For Use Outdoors	Enclosure Rating	Certification	Includes		Each		Each
Gray Powder-Coated Steel Frame and Blades



		5 3/4"	3 1/2"	8 5/16"	6 3/8"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N14	000000	5708N714	000000


		5 3/4"	5 3/4"	8 5/16"	8 11/16"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N15	00000	5708N715	00000
		7 3/4"	3 3/4"	10 5/16"	6 5/8"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N16	00000	5708N716	00000
		7 3/4"	6 1/4"	10 5/16"	9"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N17	00000	5708N717	00000
		7 3/4"	8 1/2"	10 5/16"	11 3/8"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N18	00000	5708N718	00000
		7 3/4"	13 1/4"	10 5/16"	16 1/8"	0.07"	Surface	Yes	1/4"	Yes	NEMA 3R	CSA Certified, UL Recognized Component	One Aluminum Mesh Filter, Two Mounting Brackets	5708N19	00000	5708N719	00000

Return Grilles

Painted Aluminum

Painted Steel

Cover the opening where air is pulled into your HVAC system.

	For Duct			Faceplate
	Ht.	Wd.	Color	Ht.	Wd.	Mounting Location	Mounting Fasteners Included		Each
Painted Aluminum



		6"	6"	White	7 3/4"	7 3/4"	Wall	Yes	1847K11	000000


		8"	8"	White	9 3/4"	9 3/4"	Wall	Yes	1847K13	00000
		10"	10"	White	11 3/4"	11 3/4"	Wall	Yes	1847K16	00000
		12"	12"	White	13 3/4"	13 3/4"	Wall	Yes	1847K19	00000


		Painted Steel



				6"	12"	White	7 3/4"	13 3/4"	Wall	Yes	2009K1	0000


				6"	14"	White	7 3/4"	15 3/4"	Wall	Yes	2009K5	0000
				8"	12"	White	9 3/4"	13 3/4"	Wall	Yes	2009K2	0000
				8"	14"	White	9 3/4"	15 3/4"	Wall	Yes	2009K6	0000
				10"	12"	White	11 3/4"	13 3/4"	Wall	Yes	2009K3	00000
				10"	14"	White	11 3/4"	15 3/4"	Wall	Yes	2009K7	00000
				12"	12"	White	13 3/4"	13 3/4"	Wall	Yes	2009K4	00000
				12"	14"	White	13 3/4"	15 3/4"	Wall	Yes	2009K8	00000
				14"	14"	White	15 3/4"	15 3/4"	Wall	Yes	2009K18	00000
				14"	24"	White	15 3/4"	25 3/4"	Wall	Yes	2009K43	00000
				16"	16"	White	17 3/4"	17 3/4"	Wall	Yes	2009K36	00000


				16"	20"	White	17 3/4"	21 3/4"	Wall	Yes	2009K23	00000
				20"	16"	White	21 3/4"	17 3/4"	Wall	Yes	2009K37	00000
				20"	20"	White	21 3/4"	21 3/4"	Wall	Yes	2009K19	00000
				24"	14"	White	25 3/4"	15 3/4"	Wall	Yes	2009K31	00000
				24"	24"	White	25 3/4"	25 3/4"	Wall	Yes	2009K87	00000
				30"	14"	White	31 3/4"	15 3/4"	Wall	Yes	2009K32	00000

Wall/Ceiling Registers


One-Way Airflow	Three-Way Airflow	Four-Way Airflow	Adjustable Airflow

Surface

Mount

Direct air coming out of HVAC systems. Adjust the damper to control airflow.

Adjustable Airflow—Adjustable airflow registers have fins that can be turned to alter the airflow direction.

	For Opening		Faceplate				White Painted Steel Frame and Blade
	Wd.	Ht.	Wd.	Ht.	Mounting Profile	Mounting Fasteners Included		Each
One-Way Airflow



		8"	4"	9 3/8"	5 3/8"	Surface	Yes	18425K81	000000


		10"	4"	11 3/8"	5 3/8"	Surface	Yes	18425K83	00000
		12"	6"	13 3/8"	7 3/8"	Surface	Yes	18425K87	00000
		14"	6"	15 3/8"	7 3/8"	Surface	Yes	18425K89	00000


		Three-Way Airflow



				10"	4"	11 3/8"	5 3/8"	Surface	Yes	18425K65	00000


				10"	6"	11 3/8"	7 3/8"	Surface	Yes	18425K67	00000
				12"	6"	13 3/8"	7 3/8"	Surface	Yes	18425K69	00000


				Four-Way Airflow



						10"	10"	11 3/8"	11 3/8"	Surface	Yes	18425K57	00000


						12"	12"	13 3/8"	13 3/8"	Surface	Yes	18425K59	00000
						14"	14"	15 3/8"	15 3/8"	Surface	Yes	18425K72	00000
						16"	16"	17 3/8"	17 3/8"	Surface	Yes	18425K74	00000


						Adjustable Airflow



								8"	6"	9 3/4"	7 3/4"	Surface	Yes	18395K62	00000


								10"	6"	11 3/4"	7 3/4"	Surface	Yes	18395K64	00000
								12"	4"	13 3/4"	5 3/4"	Surface	Yes	18395K52	00000
								12"	6"	13 3/4"	7 3/4"	Surface	Yes	18395K66	00000
								12"	8"	13 3/4"	9 3/4"	Surface	Yes	18395K68	00000
								14"	6"	15 3/4"	7 3/4"	Surface	Yes	18395K72	00000
								14"	8"	15 3/4"	9 3/4"	Surface	Yes	18395K74	00000
								16"	4"	17 3/4"	5 3/4"	Surface	Yes	18395K76	00000
								16"	6"	17 3/4"	7 3/4"	Surface	Yes	18395K83	00000
								16"	8"	17 3/4"	9 3/4"	Surface	Yes	18395K78	00000

Filter-Ready Return Grilles for Drop Ceilings


Painted Steel Louvered Diffuser	Painted Steel Perforated Diffuser

Place these grilles in the grid of a drop ceiling to create return airflow to your HVAC system without a duct. Add a filter (not included) for protection against dust and debris.

		For Ceiling Tile, ft.			For Filter
	Diffuser Type	Wd.	Lg.	Color	Trade Size	Thk.	Mounting Location		Each
Painted Steel



		Louvered	2	2	White	20 × 20	1"	Ceiling	2532K7	000000


		Perforated	2	2	White	20 × 20	1"	Ceiling	2532K5	00000

Filter-Ready Return Grilles

Add a filter (not included) to these grilles for protection against dust and debris entering your HVAC system. Select a filter that matches your duct size.

	For Duct			Faceplate
	Ht.	Wd.	Color	Ht.	Wd.	For Filter Thk.	Mounting Location	Mounting Fasteners Included	Mounting Hole Dia.		Each
Painted Steel



		14"	14"	White	16 13/16"	16 13/16"	1"	Wall	No	1/4"	20105K32	000000


		14"	20"	White	16 13/16"	22 13/16"	1"	Wall	No	1/4"	20105K52	00000
		14"	30"	White	16 13/16"	32 13/16"	1"	Wall	No	1/4"	20105K72	00000
		16"	16"	White	18 13/16"	18 13/16"	1"	Wall	No	1/4"	20105K42	00000
		16"	20"	White	18 13/16"	22 13/16"	1"	Wall	No	1/4"	20105K53	00000
		16"	25"	White	18 13/16"	27 13/16"	1"	Wall	No	1/4"	20105K62	00000
		20"	14"	White	22 13/16"	16 13/16"	1"	Wall	No	1/4"	20105K34	00000
		20"	16"	White	22 13/16"	18 13/16"	1"	Wall	No	1/4"	20105K43	00000
		20"	25"	White	22 13/16"	27 13/16"	1"	Wall	No	1/4"	20105K63	00000
		24"	12"	White	26 13/16"	14 13/16"	1"	Wall	No	1/4"	20105K26	00000
		24"	14"	White	26 13/16"	16 13/16"	1"	Wall	No	1/4"	20105K35	00000


		25"	16"	White	27 13/16"	18 13/16"	1"	Wall	No	1/4"	20105K45	00000

Floor Registers


	Recessed Mount

Direct air coming out of HVAC systems. Adjust the damper to control airflow.

	For Opening		Faceplate			Brown Painted Steel Frame and Blade		White Painted Steel Frame and Blade
	Wd.	Ht.	Wd.	Ht.	Mounting Profile		Each		Each
One-Way Airflow



		10"	2 1/4"	11 3/8"	3 5/8"	Recessed	2004K11	000000	2004K21	000000


		10"	4"	11 3/8"	5 3/8"	Recessed	2004K14	0000	2004K24	0000
		10"	6"	11 3/8"	7 3/8"	Recessed	2004K17	00000	2004K27	00000
		12"	2 1/4"	13 3/8"	3 5/8"	Recessed	2004K12	0000	2004K22	0000
		12"	4"	13 3/8"	5 3/8"	Recessed	2004K15	0000	2004K25	0000
		12"	6"	13 3/8"	7 3/8"	Recessed	2004K18	00000	2004K28	00000
		14"	2 1/4"	15 3/8"	3 5/8"	Recessed	2004K13	00000	2004K23	00000
		14"	4"	15 3/8"	5 3/8"	Recessed	2004K16	00000	2004K26	00000
		14"	6"	15 3/8"	7 3/8"	Recessed	2004K19	00000	2004K29	00000