Cap Panels | McMaster-Carr

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99 Products

Quick-Open Duct Access Panels


Style A	Style B	Style C

Style D	Style E

It only takes a few seconds to get inside duct that needs regular inspection and cleaning. These panels clamp onto cutouts and have a gasket for a tight seal. Use the included template to make the cutout. Also known as cleanouts.

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

			For Duct		For Cutout		Window
	Style	For Duct Size	Ht.	Wd.	Ht.	Wd.	Ht.	Wd.	Temp. Range, ° F	Features	Mount Type		Each
For Rectangular Duct







				Galvanized Steel Panel and Frame

				A	—	10"	14"	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	1815K66	000000


				A	—	12"	16"	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	1815K67	00000
				A	—	18"	22"	14"	18"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	1815K68	000000
				B	—	8"	12"	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K101	00000
				C	—	16"	20"	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K102	000000
				C	—	22"	28"	18"	24"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	1815K71	000000
				D	—	10"	14"	6"	10"	2 5/8"	4"	-20° F to 200° F	Viewing Window	Clamp On	1815K102	00000
				D	—	16"	20"	12"	16"	8"	8"	-20° F to 200° F	Insulated Backing, Viewing Window	Clamp On	1815K101	000000


				For Round Duct







								Galvanized Steel Panel and Frame

								E	5-6	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K105	00000


								E	6-7	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K1	00000
								E	7-9	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K106	00000
								E	8-9	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K2	00000
								E	10-11	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K107	00000
								E	10-11	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K109	000000
								E	10-12	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K3	00000
								E	12-14	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K108	00000
								E	12-14	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K11	000000
								E	13-14	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K4	00000
								E	15-16	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K5	00000


								E	15-16	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K111	000000
								E	15-16	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K114	000000
								E	17-18	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K112	000000
								E	17-18	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K115	000000
								E	17-20	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K6	00000
								E	19-20	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K113	000000
								E	19-20	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K116	000000
								E	21-22	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K117	000000
								E	21-24	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K7	00000
								E	23-24	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K118	000000


								E	25-28	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K8	00000
								E	25-28	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K119	000000
								E	29-32	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K12	000000
								E	29-32	—	—	18"	24"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K122	000000
								E	33-36	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	5252K121	000000

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

Duct Access Panels

Create an entry point for cleaning and inspecting duct. These panels cover cutouts and mount with screws. Also known as cleanouts.

Aluminum Panel and Frame—One-third the weight of steel, aluminum components are easier to handle during installation. They also resist rust in wet environments but won’t last as long as steel.

		For Cutout		Mounting
	For Duct Size	Ht.	Wd.	Fasteners Included	Hole Dia.	Mount Type		Each
For Round Duct







				Aluminum Panel and Frame

				4	2 1/2"	3 3/4"	No	5/32"	Screw On	3978K41	000000


				6	3 7/8"	6"	No	5/32"	Screw On	3978K42	00000
				8	4"	6 3/8"	No	5/32"	Screw On	3978K43	00000
				10	4"	6 1/4"	No	5/32"	Screw On	3978K44	00000
				12	4"	6 1/8"	No	5/32"	Screw On	3978K45	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

PVC Pipe Insulation Jacketing

Protect insulation from light impact and moisture with this durable PVC jacketing. When selecting size, use the OD of the insulation you are jacketing. Seal with sealant or tape (sold separately).

Caps

For Pipe Insulation OD	Flexibility	Temp. Range, ° F	Color	Flammability Rating		Each
1 7/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K181	00000
2 1/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K35	0000
2 3/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K182	0000
2 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K36	0000
2 7/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K183	0000
3 1/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K37	0000
3 3/8" to 3 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K184	0000
3 7/8" to 4 1/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K185	0000
4 3/8" to 4 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K186	0000
4 7/8" to 5 3/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K187	0000
5 1/2" to 5 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K188	0000
5 7/8" to 6 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K189	0000
6 7/8" to 7 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K191	00000
7 7/8" to 8 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K192	00000
10 1/8" to 10 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K194	00000
11 1/8" to 11 3/4"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K44	00000
12 1/8" to 12 5/8"	Flexible	0 to 140	White	ASTM E84 25/50 for Flame and Smoke	45315K46	00000

Accessories for Pipe Insulation Jacketing

		Each
Silicone Sealant (10.1-fl. oz. Cartridge)	7587A33	000000
Tape (2" × 108 ft.)	45325K66	00000

High-Temperature Quick-Open Access Panels

With a ceramic fiber gasket and an iron frame, these panels withstand temperatures up to 2300° F. They’re commonly used in grease ducts and other high-temperature systems that need frequent cleaning. Panels clamp onto cutouts and the gasket keeps heat and material sealed inside. Use the included template to make the cutout. Also known as cleanouts.

	For Duct		For Cutout
	Ht.	Wd.	Ht.	Wd.	Temp. Range, ° F	Mount Type		Each
For Rectangular Duct







				Galvanized Steel Panel and Iron Frame

				10"	14"	6"	10"	Not Rated to 2,300° F	Clamp On	1815K103	0000000


				12"	16"	8"	12"	Not Rated to 2,300° F	Clamp On	1815K104	000000