Protect your investment with our fast and easy to install BoatVent II. The BoatVent II can also be added to any custom or semi custom marine cover. Made with the contemporary UV inhibited polymers you’ll be able to be sure that it’ll resist the elements. This remarkable devise prolongs the life of your boats upholstery by venting the enclosed space of the warm, moist air. With millions sold this combination has transform the usual for preventive care within the industry, and is a should for all boat owners.