| Unit of measurement | TT 315 | ||
| Speed | - | 1 | 2 |
| Connected air duct size | in | 12 3/8” | |
| Minimum supply voltage | V | 120 | |
| Maximum supply voltage | V | 120 | |
| Power supply frequency | Hz | 60 | |
| Rated power | W | 224 | 343 |
| Maximum unit current | A | 1.89 | 2.95 |
| Maximum performance @0.2" | CFM | 780 | 1020 |
| Sound level | Sones | 2.5 | 4.5 |
| Impeller material | - | Plastic | |