The TE Connectivity Energy part 985444-000 is a convenient solution for inflating up to three TDUX-100 duct seals in an empty duct. The gas cylinder provided in this package is specifically designed to efficiently fill the seals with the necessary pressure, ensuring a reliable and secure seal within the duct. With this product, you can easily install and maintain airtight duct systems, providing improved efficiency and protection against water, gas, and other contaminants.