6 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket

The Master Flow 6 in. x 25 ft. Insulated Flexible Duct R6 Silver Jacket is used in standard Heating and Air Conditioning (HVAC) systems and some venting applications. The duct has R6 insulation which contains 33% more insulation than the standard R4.2 product. This additional insulation provides greater thermal efficiency to save energy. The product is also covered in a heavy duty, silver jacket for durability. The duct is ETL listed, meeting the UL181 standard.”,”highlights”:[“R6 fiberglass insulation is perfect for heating and A/C systems”,”Galvanized core wire resists rust and corrosion”,”Insulated duct can withstand up to 200°F”