VenTech VT IF6+CF6-B Inline Exhaust Blower Fan with Carbon Filter and Variable Speed Controller, 440 CFM, 6" B0051HDECS
VenTech VT DF-6 DF6 Duct Fan, 240 CFM, 6" $23.99 B005KMTYFK
VenTech VT Duct-6 VTD625 Aluminum Duct for Ventilation Ducting, 6'' B00DCES1TI
VenTech VTSPEED Variable Dial Router Fan Speed Controller for Duct and Inline Fans $17.99 B00EVYGPJQ
VenTech DF4 4" Duct Fan 65 CFM $32.99 B00F6BL11U