4 Inch Inline Fan - High CFM Duct Booster Fan for Grow Tents, Hydroponics & Ventilation - Quiet Energy Efficient Exhaust Fan for Home, Garage & Indoor Use

Inline Fan, Housing Material Galvanized Steel, Fits Duct Dia. 4 in, Voltage 120V, Max. Amps 0.66 A, Max. Wattage 71, Number of Speeds 1, Housing Dia. 8 3/4 in, Length 9 3/4 in, Motor RPM 2750, CFM @ Duct 170, CFM @ 0.000-In. SP 170, CFM @ 0.100-In. SP 160, CFM @ 0.125-In. SP 157, CFM @ 0.200-In. SP 150, CFM @ 0.250-In. SP 146, CFM @ 0.375-In. SP 135, CFM @ 0.400-In. SP 134, CFM @ 0.450-In. SP 126, CFM @ 0.500-In. SP 126, CFM @ 0.600-In. SP 119, CFM @ 0.750-In. SP 90, CFM @ 0.800-In. SP 103

CFM @ 0.450-In. SP: 126, Housing Material: Galvanized steel, CFM @ 0.600-In. SP: 119