The end boot is a component used for right-angle center-end transitions from round pipe or insulated flexible duct to a register or grille in hvac systems. constructed from steel with a galvanized finish, this boot is designed for heating and cooling applications. it features a 4" length, 10" width, and 4" height, with a 90-degree angle to facilitate airflow direction changes. this component is suitable for connecting ductwork to registers or grilles. the boot is specifically engineered for a right-angle center-end transition, allowing for efficient airflow management within a heating or cooling system. its steel construction provides structural stability for the ductwork connection, while the galvanized finish offers a protective layer. the 4" x 10" x 4" dimensions ensure compatibility with standard duct sizes, making it a practical choice for various hvac installations. this end boot is intended for use in residential or commercial settings where a transition from round pipe or insulated flexible duct to a register or grille is required. the 90-degree angle design allows for precise positioning in tight spaces, ensuring that the airflow is directed correctly into the room. this component is a standard part of heating equipment accessories, facilitating the proper distribution of air throughout the building.