Industrial Grade Withering Troughs are offered in modules of 8 ft X 5 ft and desired length. These Withering Troughs are available in a sturdy construction and exhibit resistance to corrosion. These Withering Troughs are easy to operate and need less maintenance. Industrial Grade Withering Troughs are powered by a VFD drive that enables the user for operating the fan in variable speeds to suit the required degree of withering.