Synthetic Fiber Filters | McMaster-Carr

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System of Measurement

Inch

Thickness

Filter Type

Pad

Panel

Roll

HVAC Filter Trade Size

MERV Filter Rating

Color

For Removing

Roll/Pad Width

Construction

Material

Copper/Polyester Fabric

Muslin Cheesecloth Fabric

Roll/Pad Length

Reusable

Frame Material

Filter Efficiency @ 3 Microns

For Use With

Maximum Temperature

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

REACH

Compliant

RoHS

Compliant

Removes Particle Size Down To

Less than 100 μm

Specifications Met

UL 900

Filter Efficiency @ 1 Microns

20%

Air Filter Performance

Certification

59 Products

About Air Filter Efficiency Ratings

A compound inhibits mildew and mold growth. All of these filters have pleats that create a large surface area for filtering without reducing airflow. They meet UL 900 flame retardance requirements. Actual size is up to 5/8” less than trade size.

Product registration requirements restrict sales to the listed areas.

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

1" Thick

		Filter Efficiency @
HVAC Filter Trade Size	MERV Filter Rating	1 Micron	3 Microns	Removes Particle Size Down To, microns	Frame Material	Max. Temperature, °F	Cannot Be Sold To		Pkg.
Pkg. of 1
Synthetic Fiber
12 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
14 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
15 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
16 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
16 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
18 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
20 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
20 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	0000
24 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
Pkg. of 12
Synthetic Fiber
12 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
14 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
15 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
16 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
16 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
18 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
20 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
20 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
24 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000

2" Thick

		Filter Efficiency @
HVAC Filter Trade Size	MERV Filter Rating	1 Micron	3 Microns	Removes Particle Size Down To, microns	Frame Material	Max. Temperature, °F	Cannot Be Sold To		Pkg.
Pkg. of 1
Synthetic Fiber
12 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
14 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
15 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
16 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
16 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
18 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
20 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
20 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
20 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
24 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
Pkg. of 12
Synthetic Fiber
12 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
14 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
15 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
16 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
16 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
18 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
20 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
20 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
20 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
24 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000

4" Thick

		Filter Efficiency @
HVAC Filter Trade Size	MERV Filter Rating	1 Micron	3 Microns	Removes Particle Size Down To, microns	Frame Material	Max. Temperature, °F	Cannot Be Sold To		Pkg.
Pkg. of 1
Synthetic Fiber
12 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
16 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
16 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
20 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
24 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	00000
Pkg. of 6
Synthetic Fiber
12 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
16 × 20	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
16 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
20 × 25	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000
24 × 24	8	20%	70%	3	Cardboard	150°	Canada	00000000	000000

Prefilter Air Filter Rolls

These rolls are an economical choice for protecting more expensive filters that catch finer particles. They can also be used as standalone filters. Cut to the size you need; frames are sold separately.

Synthetic fiber rolls have a heavy dust-holding capacity and withstand poor weather conditions, such as rain, snow, and wind. Often used in upstream HVAC applications, they’re durable and can catch dirt, dust, hair, and other large particles. The material of these rolls is also known as hog hair.

UL classified rolls meet flame retardance requirements.

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

Synthetic Fiber

				30 ft. Lg.
Roll/Pad Wd.	Color	Max. Temp., °F	Specifications Met		Each
1" Thick
16"	Blue	180°	UL Classified	00000000	0000000
20"	Blue	180°	UL Classified	00000000	000000
25"	Blue	180°	UL Classified	00000000	000000
30"	Blue	180°	UL Classified	00000000	000000
36"	Blue	180°	UL Classified	00000000	000000

Prefilter Air Filter Pads

These pads are an economical choice for protecting more expensive filters that catch finer particles. Cut to the size you need; frames are sold separately.

Pads meet UL standards for flame retardance.

Synthetic fiber pads have a heavy dust-holding capacity and withstand poor weather conditions such as rain, snow, and wind. Often used in upstream HVAC applications, they’re durable and can catch dirt, dust, hair, and other large particles. The material of these pads is also known as hog hair.

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

Synthetic Fiber

						Pkg. of 25
HVAC Filter Trade Size	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Color	Max. Temp., °F		Pkg.
1" Thick
12 × 24	3	20%	3	Blue	180°	00000000	0000000
16 × 20	3	20%	3	Blue	180°	00000000	000000
20 × 20	3	20%	3	Blue	180°	00000000	000000
20 × 25	3	20%	3	Blue	180°	00000000	000000
20 × 30	3	20%	3	Blue	180°	00000000	000000
24 × 24	3	20%	3	Blue	180°	00000000	000000

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About Air Filter Efficiency Ratings

Mildew-Resistant Pleated Panel Air Filters

Prefilter Air Filter Rolls

Prefilter Air Filter Pads