Gravity ventilators are sometimes called globe vents or barn vents. They are a sturdy multi-use cap designed with sloped roof and metal band around the side to prevent sideways wind and rain. All gravity vents have a built in screen for bugs and are available in small 4 inch sizes up to 48 inch (4 foot round connections) for industrial barn or warehouse venting.
** Sizes 16" and up are not kept in stock and are made per order. Please allow 5 days for completion **