Beckson Ventilator with Plastic Cover by Beckson

Description

Automatically exhausts stale, hot and moisture-laden air from inside a closed boat to help eliminate mildew and keep odors from accumulating Wind moving over the open grill on top creates a partial vacuum that literally sucks air out of the boat Removes 350 ft?? of air per hour with a breeze of only 6 mph Can completely change the air in a 30' sailboat in approximately 2 hours