Flettner Ventilator

The idea: Reduce hauling stress from overheating with a vent that can be installed on any trailer model. How it works: The Flettner Ventilator is a European product that mounts on top of the trailer to vent air out. “We tested it on our trailer during a hot highway trip in Tennessee when the external temperature was near 100 degrees,” says Debbie Stice of Horse Trailer Accessory Store. “The Flettner Ventilator lowered the temperature in the box by 13 degrees.” The quiet, wind-powered vent extracts heat, odors, and moisture, which helps minimize respiratory problems in addition to cooling the trailer. Once installed, park the trailer in an area where it can catch a breeze, and the ventilator turns nonstop. Learn more: Starting at $155; horsetraileraccessorystore.com.