The 27R 6X12X6 STR BOOT W/EARS by Southwark Metal Mfg Co is an essential component for efficient HVAC airflow management. This straight boot features a 6-inch inlet and a 12-inch outlet with a height of 6 inches, designed for optimal performance in various duct systems. The integrated ears provide secure attachment, ensuring a tight fit and preventing air leaks. Made from durable materials, this boot is built to last and withstand the demands of HVAC applications. It complies with industry standards, making it suitable for both residential and commercial use, enhancing overall system efficiency.