*IN-STORE PICKUP ONLY* Control odor and temperature in your grow area with this Grow Bright 4″ fan. Inline fans are perfect for carbon filters, air cooling lighting reflectors or attaching to ducting to ventilate your grow room! Growers can control odors and keep equipment cool with this compact metal fan. Extremely quiet and easy to install, this 80-watt, 4-inch fan pushes 170 cubic feet per minute.