| Unit of measurement | TT 250 | ||
| Connected air duct size | in | 10” | |
| Speed | - | 1 | 2 |
| Minimum supply voltage | V | 120 | |
| Maximum supply voltage | V | 120 | |
| Power supply frequency | Hz | 60 | |
| Rated power | W | 130 | 200 |
| Maximum unit current | A | 1.11 | 1.68 |
| Maximum performance @0.2" | CFM | 630 | 866 |
| Sound level | Sones | 2.5 | 4.5 |