Cap Panels | McMaster-Carr

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80 Products

Quick-Open 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	0000000	000000


				A	—	12"	16"	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	0000000	00000
				A	—	18"	22"	14"	18"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	0000000	000000
				B	—	8"	12"	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	00000
				C	—	16"	20"	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
				C	—	22"	28"	18"	24"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	0000000	000000
				D	—	10"	14"	6"	10"	2 5/8"	4"	-20° F to 200° F	Viewing Window	Clamp On	00000000	00000
				D	—	16"	20"	12"	16"	8"	8"	-20° F to 200° F	Insulated Backing, Viewing Window	Clamp On	00000000	000000


				For Round Duct







								Galvanized Steel Panel and Frame

								E	5-6	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	00000


								E	6-7	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000
								E	7-9	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	00000
								E	8-9	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000
								E	10-11	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	00000
								E	10-11	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	10-12	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000
								E	12-14	—	—	4"	8"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	00000
								E	12-14	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	0000000	000000
								E	13-14	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000
								E	15-16	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000


								E	15-16	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	15-16	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	17-18	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	17-18	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	17-20	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000
								E	19-20	—	—	8"	12"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	19-20	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	21-22	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	21-24	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000
								E	23-24	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000


								E	25-28	—	—	6"	10"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	000000	00000
								E	25-28	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	29-32	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	0000000	000000
								E	29-32	—	—	18"	24"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000
								E	33-36	—	—	12"	16"	—	—	-20° F to 200° F	Insulated Backing	Clamp On	00000000	000000

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	0000000	000000


				6	3 7/8"	6"	No	5/32"	Screw On	0000000	00000
				8	4"	6 3/8"	No	5/32"	Screw On	0000000	00000
				10	4"	6 1/4"	No	5/32"	Screw On	0000000	00000
				12	4"	6 1/8"	No	5/32"	Screw On	0000000	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	00000000	0000000


				12"	16"	8"	12"	Not Rated to 2,300° F	Clamp On	00000000	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	00000000	000000


		10"	4"	11 3/8"	5 3/8"	Surface	Yes	00000000	00000
		12"	6"	13 3/8"	7 3/8"	Surface	Yes	00000000	00000
		14"	6"	15 3/8"	7 3/8"	Surface	Yes	00000000	00000


		Three-Way Airflow



				10"	4"	11 3/8"	5 3/8"	Surface	Yes	00000000	00000


				10"	6"	11 3/8"	7 3/8"	Surface	Yes	00000000	00000
				12"	6"	13 3/8"	7 3/8"	Surface	Yes	00000000	00000


				Four-Way Airflow



						10"	10"	11 3/8"	11 3/8"	Surface	Yes	00000000	00000


						12"	12"	13 3/8"	13 3/8"	Surface	Yes	00000000	00000
						14"	14"	15 3/8"	15 3/8"	Surface	Yes	00000000	00000
						16"	16"	17 3/8"	17 3/8"	Surface	Yes	00000000	00000


						Adjustable Airflow



								8"	6"	9 3/4"	7 3/4"	Surface	Yes	00000000	00000


								10"	6"	11 3/4"	7 3/4"	Surface	Yes	00000000	00000
								12"	4"	13 3/4"	5 3/4"	Surface	Yes	00000000	00000
								12"	6"	13 3/4"	7 3/4"	Surface	Yes	00000000	00000
								12"	8"	13 3/4"	9 3/4"	Surface	Yes	00000000	00000
								14"	6"	15 3/4"	7 3/4"	Surface	Yes	00000000	00000
								14"	8"	15 3/4"	9 3/4"	Surface	Yes	00000000	00000
								16"	4"	17 3/4"	5 3/4"	Surface	Yes	00000000	00000
								16"	6"	17 3/4"	7 3/4"	Surface	Yes	00000000	00000
								16"	8"	17 3/4"	9 3/4"	Surface	Yes	00000000	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	0000000	000000	0000000	000000


		10"	4"	11 3/8"	5 3/8"	Recessed	0000000	0000	0000000	0000
		10"	6"	11 3/8"	7 3/8"	Recessed	0000000	00000	0000000	00000
		12"	2 1/4"	13 3/8"	3 5/8"	Recessed	0000000	0000	0000000	0000
		12"	4"	13 3/8"	5 3/8"	Recessed	0000000	0000	0000000	0000
		12"	6"	13 3/8"	7 3/8"	Recessed	0000000	00000	0000000	00000
		14"	2 1/4"	15 3/8"	3 5/8"	Recessed	0000000	00000	0000000	00000
		14"	4"	15 3/8"	5 3/8"	Recessed	0000000	00000	0000000	00000
		14"	6"	15 3/8"	7 3/8"	Recessed	0000000	00000	0000000	00000