About Air Filter Efficiency Ratings
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Pleated Panel Air Filters
The pleats create a large surface area for filtering without reducing airflow. These filters are typically used as replacement filters in HVAC equipment. 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.
Don’t see the size you need? Additional sizes are available.
For technical drawings and 3-D models, click on a part number.
Filter Efficiency @ | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| HVAC Filter Trade Size | MERV Filter Rating  | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Material | Frame Material | Max. Temp., °F | Pkg. | |
Pkg. of 2 | |||||||||
| 18 × 20 | 8 | 44% | 73% | 3 | Polyester Plastic/Polyethylene Plastic Blend | Cardboard | 180° | 00000000 | 000000 |
Pkg. of 12 | |||||||||
| 18 × 20 | 8 | 44% | 73% | 3 | Polyester Plastic/Polyethylene Plastic Blend | Cardboard | 180° | 00000000 | 00000 |
Filter Efficiency @ | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| HVAC Filter Trade Size | MERV Filter Rating | 1 Micron | 3 Microns | Removes Particle Size Down To, microns | Material | Frame Material | Max. Temp., °F | Pkg. | |
Pkg. of 2 | |||||||||
| 18 × 20 | 8 | 44% | 73% | 3 | Polyester Plastic/Polyethylene Plastic Blend | Cardboard | 180° | 00000000 | 000000 |
Pkg. of 12 | |||||||||
| 18 × 20 | 8 | 44% | 73% | 3 | Polyester Plastic/Polyethylene Plastic Blend | Cardboard | 180° | 00000000 | 000000 |
Panel Air Filters
These filters are typically used as replacements in HVAC equipment.
All meet UL Classified flame retardance requirements. Actual size is up to 5/8” more or less than trade size.
Prefilters can be used as a standalone filter or a prefilter that guards your main filter. They’re an economical choice for protecting expensive filters that catch fine particles.
For technical drawings and 3-D models, click on a part number.
| HVAC Filter Trade Size | MERV Filter Rating | Filter Efficiency @ 3 Microns | Removes Particle Size Down To, microns | Material | Frame Material | Max. Temp., °F | Pkg. Qty. | Pkg. | |
Prefilters | |||||||||
|---|---|---|---|---|---|---|---|---|---|
1" Thick | |||||||||
| 18 × 20 | 5 | 20% | 3 | Fiberglass | Cardboard | 180° | 12 | 00000000 | 000000 |
Frames for Panel Air Filters
Hold panel filters in place. The frames can be welded together to hold multiple filters. The trade size is the actual size of the frame.
Add clips to attach frames to 1" or 4" filters.
For technical drawings and 3-D models, click on a part number.
