Seves Convertible 8 in. x 8 in. Dryer Vent for 3 in. or 4 in. Glass Block Windows (Actual 7.75 x 7.75 in.)

This 8 in. x 8 in. Glass Block Dryer Vent can be used for either a 3 in. or 4 in. glass block application and replaces 1-existing 8 in. x 8 in. glass block in a window or wall to enable the use of a dryer vent hose. The dryer vent block is an excellent way to provide access to venting a clothes dryer. The dryer vent block comes with exterior louvers which prevent air infiltration when the dryer is not in use.