To allow the circulation of air for doors in high heat situations, HGI offers the Energy Shield 108V Door. Doors with certain exposure to the sun, coupled by a dark color entry door, can produce temperatures in excess of 300o . These high temperatures have damaging effects to finishes, glass, frames and door seals. The 108V has an interchangeable screen and glass unit for the bottom of the door to allow air to circulate during the warmer months of the year. The vent screen comes standard with our durable pet screen mesh. In addition to our 11 color choices, the 108V is also available in six stain options.