Home Appliances & Kitchen iPower 4″ 100 CFM Inline Duct Booster Fan for HVAC $17.94 Appliances & Kitchen iPower 4″ 100 CFM Inline Duct Booster Fan for HVAC $17.94 By ARCOM - 17 November 2018 126 0 SHARE Facebook Twitter Go to the deal page: iPower 4″ 100 CFM Inline Duct Booster Fan for HVAC $17.94