Product Info Catalog Plumbing Stove Pipe & Chimney Dryer Vents Vent Increaser, Aluminum, 3 x 4-In. Vent Increaser, Aluminum, 3 x 4-In. Request a Quote UPC: 39899002505 SKU: 533836 Model Number: 250 3" x 4", aluminum vent increaser.
