- Locked-on rotor mechanisms prevents loss or damage in high winds.
- Corrugated vanes provide more strength and stability.
- Square to round base on all models.
- Sealed dual bearing system excludes dust, grit and other foreign matter and retains lubricant.
- Paint finish available to match roof selection.
| Throat Diameter | Model - Zincalume | Model - Aluminium |
| 150 | AS150 | - |
| 200 | AS200 | - |
| 300 | AS300 | - |
| 360 | - | AA360 |
| 457 | AS450 | - |
| 460 | - | AA460 |
| 600 | AS600 | AA600 |
Exhaust Capacity (m³/s)
| Stack Height (m) | Wind Speed (m/s) | Temperature Difference (°C) | 150mm Throat Diameter | 200mm Throat Diameter | 300mm Throat Diameter | 360mm Throat Diameter | 460mm Throat Diameter | 600mm Throat Diameter |
| 3 | 1.5 | 6 | 0.038 | 0.068 | 0.152 | 0.214 | 0.350 | 0.609 |
| 3 | 1.5 | 12 | 0.039 | 0.070 | 0.158 | 0.221 | 0.362 | 0.630 |
| 3 | 1.5 | 18 | 0.042 | 0.074 | 0.166 | 0.233 | 0.382 | 0.664 |
| 3 | 5 | 6 | 0.084 | 0.150 | 0.336 | 0.472 | 0.772 | 1.343 |
| 3 | 5 | 12 | 0.086 | 0.153 | 0.344 | 0.483 | 0.791 | 1.377 |
| 3 | 5 | 18 | 0.088 | 0.157 | 0.352 | 0.494 | 0.808 | 1.408 |
| 5 | 1.5 | 6 | 0.039 | 0.070 | 0.158 | 0.221 | 0.362 | 0.630 |
| 5 | 1.5 | 12 | 0.046 | 0.082 | 0.183 | 0.258 | 0.420 | 0.732 |
| 5 | 1.5 | 18 | 0.047 | 0.084 | 0.189 | 0.264 | 0.431 | 0.751 |
| 5 | 5 | 6 | 0.086 | 0.153 | 0.344 | 0.483 | 0.791 | 1.377 |
| 5 | 5 | 12 | 0.089 | 0.158 | 0.354 | 0.497 | 0.813 | 1.414 |
| 5 | 5 | 18 | 0.092 | 0.164 | 0.367 | 0.515 | 0.844 | 1.467 |
| 9 | 1.5 | 6 | 0.042 | 0.074 | 0.166 | 0.233 | 0.381 | 0.664 |
| 9 | 1.5 | 12 | 0.047 | 0.084 | 0.180 | 0.264 | 0.431 | 0.751 |
| 9 | 1.5 | 18 | 0.052 | 0.093 | 0.210 | 0.295 | 0.483 | 0.839 |
| 9 | 5 | 6 | 0.088 | 0.157 | 0.352 | 0.494 | 0.808 | 1.408 |
| 9 | 5 | 12 | 0.092 | 0.164 | 0.367 | 0.515 | 0.843 | 1.467 |
| 9 | 5 | 18 | 0.093 | 0.166 | 0.371 | 0.522 | 0.855 | 1.486 |
