Centrifugal Box Fans
| Code | Size mm | Price (£) | Speed Controller | Price (£) |
| GBW 240/4 | 240 | 368.22 | TSW 1.5 1.5A | 78.54 |
| GBW 315/4 | 315 | 417.18 | TSW 1.5 1.5A | 78.54 |
| GBW 400/4 | 400 | 647.70 | TWS 3.0 13A | 89.76 |
| GBW 450/4 | 450 | 679.32 | TWS 5.0 5A | 143.90 |
| GBW 500/4 | 500 | 936.40 | TWS 7.5. 7.5A | 177.48 |
