Fan-Tastic Vent K2020-81 White Vent Lid

White Opaque Double Dome Insulate your vent without having to utilize a vent pillow, eliminate the need for an aftermarket sun shade. These domes act under the same principles as a double pane window, utilizing a pocket of air sandwiched between two single domes. The insulated domes will replace any existing FanTastic Vent lid. Smoke opaque dome has a lifetime warranty and is made of virgin polycarbonate, the white opaque has a one year warranty and is made of ASA resin.