The Pittsburgh Corning 8 in x 8 in x 4 in Glass Block Dryer Vent 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.
- Exterior louvers to prevent air leakage
- Fits either 3 in or 4 in glass blocks
- Durable material