Activated Carbon | McMaster-Carr

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About Air Filter Efficiency Ratings

About Filters and Particle Sizes

Build-Your-Own Filter Cartridges for Water

Unscrew the bottom of these cartridges and fill with your own media. Cartridges fit standard filter housings. They can be cleaned for repeated use.

Acid-washed filter media reduces ash content and dust particles.

Filter Media

Container Net Weight, lbs.	Removes Particle Size Down To, microns	Max. Temp., °F	Material	Features		Each
5	Not Rated	250	Carbon	__	0000000	000000
27 1/2	Not Rated	Not Rated	Carbon	__	0000000	000000
27 1/2	Not Rated	Not Rated	Carbon	Acid Washed	0000000	000000

Filter Cartridges for Reducing Odor and Chlorine in Water

Use these cartridges in a filter housing to treat water quality and reduce odor and chlorine in your line.

Pleated cartridges provide a large surface area for high particle retention.

Solid cartridges are for high strength and durability.

Carbon—Pleated
	Ht.	OD	ID	Removes Particle Size Down To, microns	Max. Flow Rate, gpm	Max. Temp., °F	End Type		Each
A	3 3/4"	2 5/8"	1"	5	2	140°	Open on Both Ends	0000000	000000
Carbon—Solid
B	4 7/8"	2 1/2"	1"	5	0.5	125°	Open on Both Ends	00000000	0000
B	9 3/4"	2 1/2"	1"	5	1	125°	Open on Both Ends	0000000	00000
C	9 3/4"	2 3/4"	1"	5	3	125°	Open on Both Ends	0000000	00000
D	9 3/4"	2 7/8"	1"	20	1	125°	One Open and One Closed	00000000	00000
E	9 3/4"	2 5/8"	1"	1	1	145°	Open on Both Ends	0000000	00000
E	9 3/4"	2 7/8"	1"	0.5	0.6	165°	One Open and One Closed	00000000	00000
E	9 3/4"	2 7/8"	1"	0.5	1	125°	Open on Both Ends	0000000	00000
E	9 3/4"	2 7/8"	1"	5	1	125°	Open on Both Ends	0000000	00000
E	9 3/4"	2 7/8"	1"	5	1	180°	Open on Both Ends	0000000	00000
E	9 3/4"	4 5/8"	1"	5	2	180°	Open on Both Ends	0000000	00000
E	20"	2 7/8"	1"	0.5	2	180°	Open on Both Ends	0000000	00000
E	20"	2 7/8"	1"	5	2	180°	Open on Both Ends	0000000	00000
F	9 3/4"	4 3/4"	1"	25	10	100°	Open on Both Ends	0000000	00000
F	20"	4 3/4"	1"	25	20	100°	Open on Both Ends	0000000	000000
Carbon Paper—Pleated
B	10"	2 1/2"	1"	10	3	125°	Open on Both Ends	0000000	00000
B	10"	4 1/2"	1"	10	8	125°	Open on Both Ends	0000000	00000
B	20"	2 1/2"	1"	10	6	125°	Open on Both Ends	0000000	00000
B	20"	4 1/2"	1"	10	16	125°	Open on Both Ends	0000000	00000

Chemicals

Also known as technical-grade chemicals, these industrial-grade chemicals are not suitable for food or medicinal use.

Container
Net Weight	Type	Material	Form	CAS Number		Each
Charcoal—100%
1 lbs.	Pail	Plastic	Granule	7440-44-0	00000000	000000
5 lbs.	Pail	Plastic	Granule	7440-44-0	00000000	00000
25 lbs.	Drum	Fiber with Plastic Liner	Granule	7440-44-0	00000000	000000

Odor-Removal Air Filter Pads

With a higher carbon concentration than odor-removal air filter rolls, these pads handle heavier odors. Cut to the size you need; frames are sold separately.

All meet UL 900 flame retardance requirements.

Pads with a carbon concentration of 375 g/sq. ft. provide greater odor control than other pads and can handle ammonia, hydrogen sulfide, and other gases. They are often used in hospitals and laboratories.

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

300 g/sq. ft. Carbon Concentration
HVAC Filter Trade Size	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Material	Color	Max. Temperature, °F		Each
1" Thick
12 × 12	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	000000
12 × 24	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
14 × 25	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
15 × 24	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
16 × 20	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
16 × 25	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
20 × 20	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
20 × 25	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
20 × 30	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
24 × 24	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
375 g/sq. ft. Carbon Concentration
1" Thick
12 × 12	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	0000000	00000
12 × 24	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	00000000	00000
16 × 20	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	00000000	00000
16 × 25	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	00000000	00000
20 × 20	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	00000000	00000
20 × 25	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	00000000	00000
24 × 24	7	50%	3	Carbon-Filled Polyester Plastic	Black	120°	00000000	00000

Strong-Odor-Removal Panel Air Filters

Eliminate heavy odors with these filters that have 30 times the odor removing ability of standard odor-removal air filters. The cardboard frame is treated to resist humidity, and the galvanized steel grill prevents sagging.

These filters meet UL 900 flame retardance requirements. Actual size is up to 5/8" less than trade size.

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

2" Thick
HVAC Filter Trade Size	MERV Filter Rating	Filter Efficiency @ 3 Microns	Removes Particle Size Down To, microns	Carbon Concentration, g/sq. ft.	Material	Frame Material	Max. Temperature, °F		Each
12 × 24	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	000000
16 × 20	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	00000
16 × 25	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	00000
18 × 24	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	000000
20 × 20	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	00000
20 × 24	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	00000
20 × 25	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	00000
24 × 24	7	50%	3	300	Carbon-Filled Polyester Plastic	Cardboard	120°	0000000	00000

Odor-Removal Panel Air Filters

Carbon granules in these filters remove odors. They are pleated to maximize filtering surface area without reducing airflow. The cardboard frame is treated to resist humidity, and the galvanized steel grill prevents sagging.

Actual size is up to 5/8" 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	Carbon Concentration, g/sq. ft.	Material	Frame Material	Max. Temperature, °F		Each
12 × 24	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	000000
16 × 20	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
16 × 25	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
20 × 20	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
20 × 25	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
24 × 24	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
2" Thick
12 × 24	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
16 × 20	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
16 × 25	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
20 × 20	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
20 × 25	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000
24 × 24	5	20%	3	10	Carbon-Filled Polyester Plastic	Cardboard	225°	00000000	00000