/ Product catalogue / Accessories / Filter Boxes / For Rectangular Ducts / FB (rectangular) / FB 600x350
| B | B1 | B2 | H | H1 | H2 |
|---|---|---|---|---|---|
| 23 5/8” | 24 3/8” | 25 1/4” | 13 3/4” | 14 5/8” | 15 3/8” |
