MERV 6 Air Filters | McMaster-Carr

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Filter Efficiency @ 3 Microns

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Removes Particle Size Down To

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About Air Filter Efficiency Ratings

An inherent electrostatic charge attracts dust and particles to these filters. They can be washed and reused.

These filters meet UL 900 flame retardance requirements. Actual size is up to 1/2" less than trade size.

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

1" Thick
HVAC Filter Trade Size	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Material	Frame Material	Max. Temperature, °F		Each
10 × 10	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	000000
10 × 20	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
12 × 12	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
12 × 24	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
14 × 20	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
16 × 20	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
16 × 24	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
16 × 25	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
18 × 25	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
20 × 20	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
20 × 24	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
20 × 25	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
20 × 30	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
24 × 24	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
2" Thick
16 × 20	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
16 × 25	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
20 × 20	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	00000
20 × 25	6	35%	3	Polypropylene Plastic/Polyester Plastic Blend	Galvanized Steel	180°	0000000	000000

Air Filter Rolls

Cut these rolls to the size you need; frames are sold separately.

All meet UL 900 flame retardance requirements.

90-ft. and 135-ft. long rolls with a width of 10" or greater come vacuum packed and expand after compression is released.

1" Thick

5 ft. Lg.
Roll/Pad Wd.	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Material	Color	Max. Temp., °F		Each
Dry Surface
12"	6	35%	3	Polyester Plastic	White	225°	00000000	000000
20"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
25"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
26"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
28"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
30"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
36"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
40"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
48"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
15 ft. Lg.
Dry Surface
6"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
8"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
10"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
12"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
14"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
16"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
20"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
25"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
26"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
28"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
30"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
36"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
40"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
48"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
90 ft. Lg.
Dry Surface
6"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
8"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
10"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
12"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
14"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
16"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
20"	6	35%	3	Polyester Plastic	White	225°	00000000	00000
25"	6	35%	3	Polyester Plastic	White	225°	00000000	000000
26"	6	35%	3	Polyester Plastic	White	225°	00000000	000000
28"	6	35%	3	Polyester Plastic	White	225°	00000000	000000
30"	6	35%	3	Polyester Plastic	White	225°	00000000	000000
36"	6	35%	3	Polyester Plastic	White	225°	00000000	000000
40"	6	35%	3	Polyester Plastic	White	225°	00000000	000000
48"	6	35%	3	Polyester Plastic	White	225°	00000000	000000

2" Thick

5 ft. Lg.
Roll/Pad Wd.	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Material	Color	Max. Temp., °F		Each
Dry Surface
8"	6	35%	3	Polyester Plastic	White	150°	00000000	000000
12"	6	35%	3	Polyester Plastic	White	150°	00000000	00000
20"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
25"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
30"	6	35%	3	Polyester Plastic	White	150°	00000000	00000
36"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
48"	6	35%	3	Polyester Plastic	White	150°	00000000	00000
15 ft. Lg.
Dry Surface
8"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
12"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
20"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
25"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
36"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
48"	6	35%	3	Polyester Plastic	White	150°	00000000	00000
60 ft. Lg.
Dry Surface
8"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
12"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
16"	6	35%	3	Polyester Plastic	White	150°	00000000	00000
20"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	00000
25"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	000000
30"	6	35%	3	Polyester Plastic	White	150°	00000000	000000
36"	6	35%	3	Polyester Plastic	White, Yellow	150°	00000000	000000
48"	6	35%	3	Polyester Plastic	White	150°	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.

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

Fiberglass

Pkg. of 3
HVAC Filter Trade Size	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Color	Max. Temp., °F		Pkg.
1" Thick
24 × 24	6	35%	3	White	250°	00000000	000000
2" Thick
20 × 25	6	35%	3	White	250°	00000000	00000
24 × 24	6	35%	3	White	250°	00000000	00000
Pkg. of 6
1" Thick
12 × 12	6	35%	3	White	250°	00000000	00000
12 × 24	6	35%	3	White	250°	00000000	00000
16 × 20	6	35%	3	White	250°	00000000	00000
16 × 25	6	35%	3	White	250°	00000000	00000
20 × 20	6	35%	3	White	250°	00000000	00000
20 × 25	6	35%	3	White	250°	00000000	00000
2" Thick
12 × 12	6	35%	3	White	250°	00000000	00000
12 × 24	6	35%	3	White	250°	00000000	00000
16 × 20	6	35%	3	White	250°	00000000	00000
16 × 25	6	35%	3	White	250°	00000000	00000
20 × 20	6	35%	3	White	250°	00000000	00000
Pkg. of 50
1" Thick
12 × 12	6	35%	3	White	250°	00000000	000000
12 × 24	6	35%	3	White	250°	00000000	000000
16 × 20	6	35%	3	White	250°	00000000	000000
16 × 25	6	35%	3	White	250°	00000000	000000
20 × 20	6	35%	3	White	250°	00000000	000000
20 × 25	6	35%	3	White	250°	0000000	000000
24 × 24	6	35%	3	White	250°	00000000	000000
2" Thick
12 × 12	6	35%	3	White	250°	00000000	000000
12 × 24	6	35%	3	White	250°	0000000	000000
16 × 20	6	35%	3	White	250°	00000000	000000
16 × 25	6	35%	3	White	250°	00000000	000000
20 × 20	6	35%	3	White	250°	00000000	000000
20 × 25	6	35%	3	White	250°	00000000	000000
24 × 24	6	35%	3	White	250°	00000000	000000

Reusable Air Filter Rolls

Wash and reuse these rolls. Cut to the size you need.

These rolls meet UL 900 flame retardance requirements.

Polyester pads require no frame--rigid polyester is firm enough to be used without one.

Polyester Plastic

1" Thick
Roll/Pad Wd.	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To	Material	Color	Maximum Temp °F		6 ft. Lg.	12 ft. Lg.	36 ft. Lg.
6"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	000000	000000	000000
8"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	00000
10"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	00000
12"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	00000
14"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	00000
16"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	000000
20"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	000000
25"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	000000
26"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	000000
28"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	000000
30"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	000000
36"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	00000	000000
48"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	000000	000000
72"	6	35%	3 microns	Polyester Plastic	Blue	225° F	00000000	00000	000000	000000

Reusable Air Filter Pads

Wash and reuse these pads. Cut to the size you need.

These pads meet UL 900 flame retardance requirements.

Polyester pads require no frame—rigid polyester is firm enough to be used without one.

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

Polyester Plastic

1" Thick
HVAC Filter Trade Size	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Material	Color	Maximum Temperature	Pkg. Qty.		Pkg.
12 × 12	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	000000
12 × 24	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
14 × 25	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
15 × 24	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
16 × 20	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
16 × 25	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
20 × 20	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
20 × 25	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
20 × 30	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
24 × 24	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	00000
25 × 48	6	35%	3	Polyester Plastic	Blue	225° F	1	00000000	00000
25 × 48	6	35%	3	Polyester Plastic	Blue	225° F	5	00000000	000000
30 × 48	6	35%	3	Polyester Plastic	Blue	225° F	1	00000000	00000

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About Air Filter Efficiency Ratings

Reusable Electrostatic Panel Air Filters

Air Filter Rolls

Prefilter Air Filter Pads

Reusable Air Filter Rolls

Reusable Air Filter Pads