| N. modello | 
Dimetro 
 (mm)  | 
Tensione 
 (V)  | 
Frequenza 
 (Hz)  | 
Velocità 
 (r/min)  | 
Watt 
 (W)  | 
Capacità 
 (m3 /min)  | 
Statico 
 (pa)  | 
Rumore 
 (DB)  | 
| BTF-30 | 300 (12") | 100-110 | 50/60 | 2800/3300 | 500/550 | 65/77 | 385/450 | 69 | 
| BTF-30 | 300 (12") | 220-240 | 50/60 | 2800/3300 | 500/550 | 65/77 | 385/450 | 69 | 
| BTF-40 | 400 (16") | 100-110 | 50/60 | 2800/3300 | 1100 | 105/120 | 700/780 | 79 | 
| BTF-40 | 400 (16") | 220-240 | 50/60 | 2800/3300 | 1100 | 105/120 | 700/780 | 79 | 
| BTF-45 | 450 (18") | 100-110 | 50/60 | 1400/1720 | 700/750 | 110/125 | 350/410 | 70 | 
| BTF-45 | 450 (18") | 220-240 | 50/60 | 1400/1720 | 700/750 | 110/125 | 350/410 | 70 | 
| BTF-50 | 500 (20") | 100-110 | 50/60 | 1400/1720 | 900 | 150/165 | 400/460 | 73 | 
| BTF-50 | 500 (20") | 220-240 | 50/60 | 1400/1720 | 900 | 150/165 | 400/460 | 73 | 
| BTF-60 | 600 (24") | 100-110 | 50/60 | 1400/1720 | 1500/1800 | 240/260 | 480/540 | 77 | 
| BTF-60 | 600 (24") | 220-240 | 50/60 | 1400/1720 | 1500/1800 | 240/260 | 480/540 | 77 | 
| BTF-70 | 700 (28") | 100-110 | 50/60 | 1400/1720 | 2200 | 310/330 | 580/650 | 79 | 
| BTF-70 | 700 (28") | 220-240 | 50/60 | 1400/1720 | 2200 | 310/330 | 580/650 | 79 |