Roof/Wall Upblast Centrifugal/Direct, Belt Drive
| MODEL | CURB* | H.P. | .000" | .125" | .250" | .375" | .500" | .750" |
| FX10R | 17×17 | 1/12 | 570 | 500 | 440 | 385 | 325 | 170 |
| FX13R | 17×17 | 1/6 | 1057 | 980 | 908 | 825 | 733 | 561 |
| FX16BFT | 27×27 | 1/2 | 3523 | 3262 | 3219 | 2916 | 2862 | 2352 |
| FX18BFT | 27×27 | 1 | 4970 | 4801 | 4628 | 4445 | 4258 | 3818 |
