Pest protection – additionally, this vent will provide critter protection, keeping insects and other pests from entering your home through the dryer vent. Extra savings - looking for some savings? this energy saving dryer vent closure is designed to get the job done effectively and efficiently. do your wallet a favor with the heartland natural vent. High quality ventilation – the heartland natural vent will last throughout all seasons, letting warm air escape when open and preventing cold air from entering when closed. Easy-to-install - replace your old vent with the heartland natural vent in less than 30 min. features a square base with pre-drilled holes, it must be installed in a vertical position. it can be mounted to brick, masonite, and press board. Specifications - this dryer vent cover is 13.2 x 7.4 x 6.7 inches in size and weighs 1.8 pounds.