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Removes Particle Size Down To Removes ParticleSize Down To |
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For Removing For Removing |
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Maximum Temperature Maximum Temperature |
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For Use With For Use With |
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Useful Life Useful Life |
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Material Material |
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Construction Construction |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Specifications Met Specifications Met |
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Air Filter Performance Air Filter Performance |
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Air Filter Performance Air Filter Performance |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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About Air Filter Efficiency Ratings
More
HEPA Box Air Filters

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.
HVAC Filter Trade Size | Filter Efficiency @ 0.3 Microns | Removes Particle Size Down To, microns | Material | Specifications Met | Each | |
Particleboard Frame | ||||||
---|---|---|---|---|---|---|
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 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
11 1/2" Thick | ||||||
23 3/8 × 23 3/8 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 00000000 |
24 x 12 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 000000 |
24 × 24 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 00000000 |
24 × 30 | 99.97% | 0.3 | Fiberglass | UL 900 | 0000000 | 00000000 |
Ultra-Efficiency Box Air Filters

These MERV 14 air filters capture particles down to 0.3 microns. They have a rigid frame that withstands fluctuations in airflow, such as those created by variable air volume systems.
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 | MERV Filter Rating | 0.3 Microns | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Frame Material | Max. Temperature, °F | Each | |
6" Thick | |||||||||
Fiberglass | |||||||||
12 × 24 | 14 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 0000000 |
20 × 24 | 14 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 14 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
12" Thick | |||||||||
Fiberglass | |||||||||
12 × 24 | 14 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
20 × 24 | 14 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 14 | 75% | 90% | 95% | 0.3 | Galvanized Steel | 180° | 0000000 | 000000 |
Aluminized Fiberglass | |||||||||
12 × 24 | 14 | 75% | 90% | 95% | 0.3 | Aluminized Steel | 900° | 0000000 | 000000 |
20 × 24 | 14 | 75% | 90% | 95% | 0.3 | Aluminized Steel | 900° | 0000000 | 000000 |
24 × 24 | 14 | 75% | 90% | 95% | 0.3 | Aluminized Steel | 900° | 0000000 | 000000 |
Long-Life Ultra-Efficiency Box Air Filters


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 rigid frame that withstands fluctuations in airflow, such as those created by variable air volume systems.
Actual size is up to 5/8" less than trade size.
Eight-panel filters have more surface area than four-panel filters for an even longer service life.
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. Temperature, °F | Each | |
4 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 |
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 |
High-Efficiency Box Air Filters

Rated MERV 11, these air filters capture particles down to 1 micron. They have a rigid frame that withstands fluctuations in airflow, such as those created by variable air volume systems.
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 | MERV Filter Rating | 0.3 Microns | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Frame Material | Max. Temperature, °F | Each | |
6" Thick | |||||||||
Fiberglass | |||||||||
12 × 24 | 11 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 0000000 |
20 × 24 | 11 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 11 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
12" Thick | |||||||||
Fiberglass | |||||||||
12 × 24 | 11 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
20 × 24 | 11 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
24 × 24 | 11 | 20% | 65% | 85% | 1 | Galvanized Steel | 180° | 0000000 | 000000 |
Aluminized Fiberglass | |||||||||
12 × 24 | 11 | 20% | 65% | 85% | 1 | Aluminized Steel | 900° | 0000000 | 000000 |
20 × 24 | 11 | 20% | 65% | 85% | 1 | Aluminized Steel | 900° | 0000000 | 000000 |
24 × 24 | 11 | 20% | 65% | 85% | 1 | Aluminized Steel | 900° | 0000000 | 000000 |