| Actual Depth | 11 1/2 in | 
| Actual Filter Size | 19-3/8 in x 19-3/8 in x 11-1/2 in | 
| Actual Height, Actual Width | 19 3/8 in | 
| Air Filter Header Type | No Header | 
| Air Filter Item, Item | Rigid Cell Air Filter | 
| Air Filter Media Type, Media Material | Synthetic | 
| Air Flow @ 300 fpm | 833 cfm | 
| Air Flow @ 500 fpm | 1,388 cfm | 
| Air Flow @ 625 fpm | 1,736 cfm | 
| Air Flow, Max. Air Flow, Max. Velocity | 500 fpm | 
| Country of Origin (subject to change) | Multiple | 
| Filter Efficiency | 65% | 
| Filter Efficiency - Air Filters | 65 % | 
| Filters Out | Auto Emission Particulates, Coal Dust, Humidifier Dust, Lead Dust, MERV 9-12 Legionella, Milled Flour, Nebulizer Droplets | 
| Final Recommended Resistance | 1.50" WC | 
| Frame or Header Material | Galvanized Steel | 
| Frame/Header Material | Corrosion Resisitant Steel | 
| Gasket Location, Gasket Material, Header | None | 
| Initial Resistance | 0.20" WC | 
| Initial Resistance @ 300 fpm | 0.19 in wc | 
| Initial Resistance @ 500 fpm | 0.31 in wc | 
| Max. Temp. | 180 Degrees F | 
| Media Area | 33 sq ft | 
| Media Color | Yellow | 
| Media Separator Construction | Metal Pleat | 
| MERV | 11 | 
| Nominal Depth | 12 in | 
| Nominal Filter Size | 20x20x12 | 
| Nominal Height, Nominal Width | 20 in | 
| Performance Rating | MERV 11 | 
| Recommended Final Resistance | 1.5 in wc | 
| Removes Particles Down To | 1.0 to 3.0 microns | 
| Standards | UL Classified | 
| Style - Air Filters | Box |