425SW550 (Slantwall Exhaust Fan)
| Prop Diameter | 42" |
| Prop Type | 5 wing |
| Spd | 1 |
| CFM @ 0.0 S.P. | 13,900 |
| CFM @ 0.1 S.P. | 11,315 |
| CFM @ 0.2 S.P. | 9,200 |
| HP | 3/4 |
| Ph | 1 |
| Hz | 60 |
| Volts | 115/230 |
| Amps | 6.4/3.2 |
| High RPM | 460 |
| Air Flow Ratio | 0.75 |
| Bess # | - |
| Dbs @ 7 ft. | 74 |