Synthetic Fiber Filters | McMaster-Carr

Filter by

System of Measurement

Inch

Thickness

HVAC Filter Trade Size

MERV Filter Rating

Filter Type

Color

For Removing

Material

Muslin Cheesecloth Fabric

Cellulose/Polyester Fabric

Copper/Polyester Fabric

Glass-Filled Polypropylene

HDPE

HDPE Fabric

Hemp/Polyester Fabric

Polyester/Polyethylene

Polyester/Polypropylene

Polyester/Rayon Fabric

Polyethylene

Polyethylene Fabric

Polyethylene Foam

Polyethylene/Polypropylene

Width

Construction

Air Filter Performance

Reusable

Filtering Method

Filter Efficiency @ 3 Microns

20%

70%

Export Control Classification Number (ECCN)

EAR99

Removes Particle Size Down To

Frame Material

Maximum Temperature

Application

For Use With

Certification

Form

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

RoHS

REACH

59 Products

About Air Filter Efficiency Ratings

Compare MERV rating, efficiency, and particle size to find the right filter for your location—from warehouses and offices to hospitals and labs.

Mildew-Resistant Pleated Panel Air Filters

An antimicrobial compound inhibits mildew and mold from growing on your filter. Pleats create a large surface area for filtering without reducing airflow.

Cannot Be Sold To—Product registration requirements restrict sales to the listed areas.

						Small Pack			Large Pack
	HVAC Filter Trade Size	MERV Filter Rating	Cannot Be Sold To	Max. Temp., ° F	Specs. Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
1" Thick



		12 × 24	8	Canada	150	UL 900	1	2211K241	000000	12	2211K341	000000


		14 × 25	8	Canada	150	UL 900	1	2211K242	00000	12	2211K342	000000
		15 × 20	8	Canada	150	UL 900	1	2211K243	00000	12	2211K343	000000
		16 × 20	8	Canada	150	UL 900	1	2211K244	00000	12	2211K344	00000
		16 × 25	8	Canada	150	UL 900	1	2211K245	00000	12	2211K345	000000
		18 × 24	8	Canada	150	UL 900	1	2211K246	00000	12	2211K346	000000
		20 × 20	8	Canada	150	UL 900	1	2211K247	00000	12	2211K347	000000
		20 × 25	8	Canada	150	UL 900	1	2211K248	0000	12	2211K348	000000
		24 × 24	8	Canada	150	UL 900	1	2211K249	00000	12	2211K349	000000


		2" Thick



				12 × 24	8	Canada	150	UL 900	1	2211K251	00000	12	2211K351	000000


				14 × 25	8	Canada	150	UL 900	1	2211K252	00000	12	2211K352	000000
				15 × 20	8	Canada	150	UL 900	1	2211K253	00000	12	2211K353	000000
				16 × 20	8	Canada	150	UL 900	1	2211K254	00000	12	2211K354	000000
				16 × 25	8	Canada	150	UL 900	1	2211K255	00000	12	2211K355	000000
				18 × 24	8	Canada	150	UL 900	1	2211K256	00000	12	2211K356	000000
				20 × 20	8	Canada	150	UL 900	1	2211K257	00000	12	2211K357	000000
				20 × 24	8	Canada	150	UL 900	1	2211K258	00000	12	2211K358	000000
				20 × 25	8	Canada	150	UL 900	1	2211K259	00000	12	2211K359	000000
				24 × 24	8	Canada	150	UL 900	1	2211K261	00000	12	2211K361	000000


				4" Thick



						12 × 24	8	Canada	150	UL 900	1	2211K262	00000	6	2211K362	000000


						16 × 20	8	Canada	150	UL 900	1	2211K263	00000	6	2211K363	000000
						16 × 25	8	Canada	150	UL 900	1	2211K264	00000	6	2211K364	000000
						20 × 25	8	Canada	150	UL 900	1	2211K265	00000	6	2211K365	000000
						24 × 24	8	Canada	150	UL 900	1	2211K266	00000	6	2211K366	000000

Low-Efficiency Reusable Air Filter Media

Wash and reuse this media to extend the life of expensive filters that catch fine particles. Installed upstream, this affordable media traps debris that can damage or clog your final filter. Cut it to the size you need and attach it to a frame.

Plastic Fiber Rolls

Image of Product. Front orientation. Air Filter Media. Low-Efficiency Reusable Air Filter Media, Rolls.

Collect high volumes of dust, even in poor weather, such as rain, snow, and wind. This material is also known as hog hair.

					30 ft. Long
	Wd.	MERV Filter Rating	Max. Temp., ° F	Certification		Each
1" Thick



		16"	Not Rated	180	UL Classified	4438K064	0000000


		20"	Not Rated	180	UL Classified	4438K065	000000
		25"	Not Rated	180	UL Classified	4438K066	000000
		30"	Not Rated	180	UL Classified	4438K067	000000
		36"	Not Rated	180	UL Classified	4438K068	000000

Plastic Fiber Pads

Image of Product. Front orientation. Air Filter Media. Low-Efficiency Reusable Air Filter Media, Pads.

Collect high volumes of dust, even in poor weather, such as rain, snow, and wind. This material is also known as hog hair.

	MERV Filter Rating	Max. Temp., ° F	Certification	Pkg. Qty.		Pkg.
1" Thick



	12 × 24	3	180	UL Classified	25	2173K271	0000000


	16 × 20	3	180	UL Classified	25	2173K272	000000
	20 × 20	3	180	UL Classified	25	2173K273	000000
	20 × 25	3	180	UL Classified	25	2173K274	000000
	20 × 30	3	180	UL Classified	25	2173K275	000000
	24 × 24	3	180	UL Classified	25	2173K276	000000