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Inner Rotor Exhaust Fan Provides rapid and potent air movement
air conditioning or extension tent to an outdoor vent
【Energy-Efficient Ventilation】This powerful inline duct fan speed of 3300 RPM can create the air flow of 345 CFM
preventing indoor humidity
PowerDual P4 | 4 Inch Inline Duct Booster Fan with Speed Controller and 4 Inch Dust Collection Fittings 4 Inch Inner Rotor Exhaust Fan Provides1 of Hon&Guan 4 Dust Collection Fittings Rubber Noise Reduction Clamp for 4 Inch PVC Pipe HVAC Inline Duct Fans and Carbon Filters Duct Reducer. $9. 99 Dust collection fittings, used for connecting ventilation fittings, suitable for 4 inch pvc pipe, inline duct fan, carbon filters, and 6 inch to 4 inch duct reducer. Excellent material, the 4 inch pvc cap material has good hardness and softness, can perfectly fit all 4 inch accessories. Dust collector