Introducing the FAS-N-SEAL z-vent-4"x24" Length SAF-T VENT HEAT-FAB EZ SEAL 9405, a high-quality metal venting system designed to provide a safe and efficient way to vent your heating and cooling systems. This 7" length section is made in the United States using top-quality materials to ensure maximum durability and reliability. With its oil type and model number 9405, this venting system is perfect for use in central heating and cooling systems, including furnaces. The FAS-N-SEAL brand is known for its superior quality and performance, making this a great addition to your home improvement project. Invest in the FAS-N-SEAL z-vent-4"x24" Length SAF-T VENT HEAT-FAB EZ SEAL 9405 and enjoy the benefits of a safe and efficient venting system.