• TVB 11X Series Flow rates from 490 to 1250 m3/hr (290 - 740 CFM) at pressures up to 411 mm H2O (16.2 in w.g.)

• TVB 22X Series Flow rates from 625 to 1590 m3/hr (370 - 935 CFM) at pressures up to 525 mm H2O (20.6 in w.g.)

• TVB 33X Series Flow rates from 770 to 1960 m3/hr (455 - 1152 CFM) at pressures up to 635 mm H2O (25 in w.g.)

• TVB 43X Series Flow rates from 970 to 2460 m3/hr (570 - 1450 CFM) at pressures up to 813 mm H2O (32 in w.g.)

• TVB 53X Series Flow rates from 1200 to 3050 m3/hr (710 - 1800 CFM) at pressures up to 1016 mm H2O (40 in w.g.)

• TVB 64X Series Flow rates from 1510 to 3840 m3/hr (890 - 2260 CFM) at pressures up to 1270 mm H2O (50 in w.g.)

• TVB 74X Series Flow rates from 1880 to 4770 m3/hr (1105 - 2805 CFM) at pressures up to 1575 mm H2O (62 in w.g.)

Options include larger sizes and multistage units.