Chimney flue accessories play a crucial role in maintaining the efficiency and safety of your fireplace. The Wall Sleeve helps create a secure passage for the flue pipe through walls, while the Gasket ensures a tight seal to prevent leaks. The Wall Sleeve 45° Adjustable allows for flexibility in directing the flue pipe, and the TWPro MB Damper Section aids in controlling airflow within the flue system. These accessories are essential for proper ventilation, smoke management, and overall performance of your fireplace, making them indispensable components for any flue installation or upgrade project.