Designed for general air filtration in various types of industrial and commercial HVAC systems. Suitable for where dust loading conditions are heavy.
| Description | Case Quantity |
| 16x20x1 | 12 |
| 16x25x1 | 12 |
| 20x20x1 | 12 |
| 20x25x1 | 12 |
| 24x24x1 | 12 |
| 16x20x2 | 12 |
| 16x25x2 | 12 |
| 18x24x2 | 12 |
| 20x20x2 | 12 |
| 20x24x2 | 12 |
| 20x25x2 | 12 |
| 24x24x2 | 12 |