ThermoFlo Duct Reducer ThermoFlo Sale! from $9.95 CAD Size 6" to 4" 8" to 4" 8" to 6" 10" to 6" 10" to 8" 12" to 10" 14" to 10" Qty. Add to Cart Inventory on handShips within 24hours Mon-Fri This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Benefits of the Duct Reducers Easily reduce or increase duct diameter to suit requirements Made with heavy duty galvanized steel, powder coated white SKU: 210000001498 Tweet