Box Air Filters

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Filter Efficiency @ 3 Microns

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Removes Particle Size Down To

Filter Efficiency @ 1 Microns

Filter Efficiency @ 0.3 Microns

Maximum Temperature

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69 Products

About Air Filter Efficiency Ratings

Control dust and contaminants in hospitals, laboratories, and other demanding environments. These filters have a rigid frame that withstands fluctuations in airflow, such as those created by variable air volume systems. The sealing gasket is on the downstream side of the filter.

The trade size is the actual size of the filter.

UL Classified-rated filters meet flame retardance requirements.

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

Particleboard Frame
HVAC Filter Trade Size	Filter Efficiency @ 0.3 Microns	Removes Particle Size Down To, microns	Material	Specifications Met		Each
3" Thick
12 × 12	99.97%	0.3	Fiberglass	__	0000000	0000000
12 × 24	99.97%	0.3	Fiberglass	__	0000000	000000
24 × 24	99.97%	0.3	Fiberglass	__	0000000	000000
24 × 36	99.97%	0.3	Fiberglass	__	0000000	000000
5 3/4" Thick
8 × 8	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
12 × 12	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
12 × 24	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
24 × 24	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
11 1/2" Thick
12 × 24	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
23 3/8 × 23 3/8	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
24 × 24	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
24 × 30	99.97%	0.3	Fiberglass	UL Classified	0000000	000000
Aluminum Frame
2 3/4" Thick
12 × 12	99.97%	0.3	Fiberglass	UL 900	000000	000000
24 x 12	99.97%	0.3	Fiberglass	UL 900	000000	000000
24 × 24	99.97%	0.3	Fiberglass	UL 900	000000	000000
Galvanized Steel Frame
5 7/8" Thick
8 × 8	99.97%	0.3	Fiberglass	UL 900	000000	000000
12 × 12	99.97%	0.3	Fiberglass	UL 900	000000	000000
24 x 12	99.97%	0.3	Fiberglass	UL 900	000000	000000
24 × 24	99.97%	0.3	Fiberglass	UL 900	000000	000000
11 1/2" Thick
23 3/8 × 23 3/8	99.97%	0.3	Fiberglass	UL 900	0000000	000000
24 x 12	99.97%	0.3	Fiberglass	UL 900	000000	000000
24 × 24	99.97%	0.3	Fiberglass	UL 900	0000000	000000
24 × 30	99.97%	0.3	Fiberglass	UL 900	0000000	000000
Stainless Steel Frame
2 3/4" Thick
12 × 12	99.97%	0.3	Fiberglass	UL 900	0000000	000000
24 x 12	99.97%	0.3	Fiberglass	UL 900	0000000	000000
24 × 24	99.97%	0.3	Fiberglass	UL 900	0000000	000000
5 7/8" Thick
8 × 8	99.97%	0.3	Fiberglass	UL 900	0000000	000000
12 × 12	99.97%	0.3	Fiberglass	UL 900	0000000	000000
24 x 12	99.97%	0.3	Fiberglass	UL 900	0000000	00000000
24 × 24	99.97%	0.3	Fiberglass	UL 900	0000000	000000
11 1/2" Thick
24 x 12	99.97%	0.3	Fiberglass	UL 900	0000000	00000000
24 × 24	99.97%	0.3	Fiberglass	UL 900	0000000	00000000
24 × 30	99.97%	0.3	Fiberglass	UL 900	0000000	00000000

Long-Life Box Air Filters

Four Panels

Six Panels

Eight Panels

Multiple panels maximize filtering surface area for long service life. These MERV 14 air filters capture particles down to 0.3 microns. They have a V-shape design and a rigid frame that withstands fluctuations in airflow, such as those created by variable air volume systems. The more filter panels they have, the more filtering surface they have for a longer service life.

Actual size is up to 5/8" less than trade size.

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

		Filter Efficiency @
HVAC Filter Trade Size	MERV Filter Rating	0.3 Microns	1 Micron	3 Microns	Removes Particle Size Down To, microns	Material	Frame Material	Max. Temp., °F		Each
4 Panels
12" Thick
12 × 24	14	75%	90%	95%	0.3	Fiberglass	Plastic	180°	0000000	0000000
20 × 24	14	75%	90%	95%	0.3	Fiberglass	Plastic	180°	0000000	000000
24 × 24	14	75%	90%	95%	0.3	Fiberglass	Plastic	180°	0000000	000000
6 Panels
12" Thick
20 × 20	14	75%	90%	95%	0.3	Fiberglass	Plastic	180°	0000000	000000
8 Panels
12" Thick
12 × 24	14	75%	90%	95%	0.3	Fiberglass	Plastic	180°	0000000	000000
20 × 24	14	75%	90%	95%	0.3	Fiberglass	Plastic	180°	0000000	000000
24 × 24	14	75%	90%	95%	0.3	Fiberglass	Plastic	180°	0000000	000000

The rigid frame on these filters withstands fluctuations in airflow, such as those created by variable air volume systems.

MERV 11 filters capture common allergens, such as dander, mold spore, and pollen, so they are often used in data centers and other locations that require extra-clean air. They strike a good balance between filtration efficiency and airflow.

MERV 14 filters provide a higher level of filtration than MERV 11 filters and are more effective at capturing finer allergens and viruses for an enhanced level of protection. These filters are often used in environments to protect against airborne contaminants from wildfire smoke and in regions with high pollution levels.

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.

	Filter Efficiency @
HVAC Filter Trade Size	0.3 Microns	1 Micron	3 Microns	Removes Particle Size Down To, microns	Frame Material	Max. Temperature, °F		Each
MERV 11
6" Thick Fiberglass
12 × 24	20%	65%	85%	1	Galvanized Steel	180°	0000000	0000000
20 × 24	20%	65%	85%	1	Galvanized Steel	180°	0000000	000000
24 × 24	20%	65%	85%	1	Galvanized Steel	180°	0000000	000000
12" Thick Fiberglass
12 × 24	20%	65%	85%	1	Galvanized Steel	180°	0000000	000000
20 × 24	20%	65%	85%	1	Galvanized Steel	180°	0000000	000000
24 × 24	20%	65%	85%	1	Galvanized Steel	180°	0000000	000000
12" Thick Aluminized Fiberglass
12 × 24	20%	65%	85%	1	Aluminized Steel	900°	0000000	000000
24 × 24	20%	65%	85%	1	Aluminized Steel	900°	0000000	000000
MERV 14
6" Thick Fiberglass
12 × 24	75%	90%	95%	0.3	Galvanized Steel	180°	0000000	000000
20 × 24	75%	90%	95%	0.3	Galvanized Steel	180°	0000000	000000
24 × 24	75%	90%	95%	0.3	Galvanized Steel	180°	0000000	000000
12" Thick Fiberglass
12 × 24	75%	90%	95%	0.3	Galvanized Steel	180°	0000000	000000
20 × 24	75%	90%	95%	0.3	Galvanized Steel	180°	0000000	000000
24 × 24	75%	90%	95%	0.3	Galvanized Steel	180°	0000000	000000
12" Thick Aluminized Fiberglass
12 × 24	75%	90%	95%	0.3	Aluminized Steel	900°	0000000	000000
24 × 24	75%	90%	95%	0.3	Aluminized Steel	900°	0000000	000000

ULPA Box Air Filters

Purify the air in your most sensitive environments. These filters remove 99.999% of dust and other particles, so they're best in areas where high air purity matters, such as semiconductor, pharmaceutical, and aerospace facilities. Constructed with fibers more densely woven than a HEPA filter, they catch 10 times more particles. However, they need to be changed more often than HEPA filters because they collect contaminants more quickly. All are UL rated for flame retardance.

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

		Filter Efficiency @
HVAC Filter Trade Size	MERV Filter Rating	0.3 Microns	1 Micron	3 Microns	Removes Particle Size Down To, microns	Material	Frame Material	Max. Temp., °F		Each
11 1/2" Thick
12 × 12	20	99.999%	100%	100%	0.3	Fiberglass	Galvanized Steel	180°	0000000	0000000
24 × 12	20	99.999%	100%	100%	0.3	Fiberglass	Galvanized Steel	180°	0000000	000000
24 × 18	20	99.999%	100%	100%	0.3	Fiberglass	Galvanized Steel	180°	0000000	000000
24 × 24	20	99.999%	100%	100%	0.3	Fiberglass	Galvanized Steel	180°	0000000	000000
24 × 30	20	99.999%	100%	100%	0.3	Fiberglass	Galvanized Steel	180°	0000000	000000

HEPA Long-Life Box Air Filters

Aluminum Frame

Steel Frame

Extend the time between filter changes in laboratories, hospitals, and other places with a high risk of airborne contaminants. These filters have tight pleats, which increase the surface area for catching particles. They’re a HEPA filter, so they capture small particles, such as allergens and germs, more efficiently than standard air filters.

Filters with an aluminum frame have a V-shape design that increases the filtering area and reduces resistance to air, leading to an even longer life than filters with a standard design.

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

		Filter Efficiency @
HVAC Filter Trade Size	MERV Filter Rating	0.3 Microns	1 Micron	3 Microns	Removes Particle Size Down To, microns	Material	Max. Temp., °F		Each
Aluminum Frame
11 1/2" Thick
24 × 12	16	99.97%	99.97%	99.97%	0.3	Fiberglass	180°	0000000	0000000
24 × 24	16	99.97%	99.97%	99.97%	0.3	Fiberglass	180°	0000000	000000
Steel Frame
11 1/2" Thick
24 × 12	16	99.97%	99.97%	99.97%	0.3	Fiberglass	160°	0000000	000000
24 × 24	16	99.97%	99.97%	99.97%	0.3	Fiberglass	160°	0000000	000000

Odor-Removal Box Air Filters

Carbon granules in these filters remove odors from the air. The rigid frame won’t bend or twist from sudden changes in airflow, such as those created by variable air volume systems. For a long service life, the V-shape design increases the filtering area and reduces resistance to air.

MERV 8 filters trap dust in common areas such as warehouses and offices.

MERV 15 filters capture fine particles such as bacteria and smoke in labs and other settings where it’s important to keep air pure.

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

	Filter Efficiency @
HVAC Filter Trade Size	0.3 Microns	1 Micron	3 Microns	Removes Particle Size Down To, microns	Carbon Concentration, g/sq. ft.	Material	Frame Material	Max. Temperature, °F		Each
MERV 8
12" Thick
12 × 24	3.4%	19%	70%	0.3	46	Carbon-Filled Polyester Plastic	Plastic	130°	0000000	000000000
24 × 24	3.4%	19%	70%	0.3	46	Carbon-Filled Polyester Plastic	Plastic	130°	0000000	00000000
MERV 15
12" Thick
12 × 24	78%	95%	99%	0.3	46	Carbon-Filled Polyester Plastic	Plastic	130°	0000000	00000000
24 × 24	78%	95%	99%	0.3	46	Carbon-Filled Polyester Plastic	Plastic	130°	0000000	00000000

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About Air Filter Efficiency Ratings

HEPA Box Air Filters

Long-Life Box Air Filters

Box Air Filters

ULPA Box Air Filters

HEPA Long-Life Box Air Filters

Odor-Removal Box Air Filters