| Initial Resistance | 0.13 to 0.49 in WG |
| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | Koch Filter Corp | KOCH 102-500-016 | 16x20x2 102500016 |
| | Koch Filter Corp | KOCH 102-500-012 | 12x24x2 102500012 |
| | Koch Filter Corp | KOCH 102-500-013 | 14x20x2 102500013 |
| | Koch Filter Corp | KOCH 102-500-014 | 14x25x2 102500014 |
| | Koch Filter Corp | KOCH 102-500-017 | 16x25x2 102500017 |
| | Koch Filter Corp | KOCH 102-500-018 | 18x24x2 102500018 |
| | Koch Filter Corp | KOCH 102-500-020 | 20x24x2 102500020 |
| | Koch Filter Corp | KOCH 102-500-015 | 15x20x2 102500015 |
