The 2" NST X 2 5/16" Alum Female Coupling from Sealfast is designed for reliable connections in firefighting and industrial applications. This coupling features a durable aluminum construction, ensuring longevity and resistance to corrosion. With a standard National Standard Thread (NST) size of 2 inches, it provides a secure fit for hoses and fittings. The 2 5/16" female end allows for easy attachment to various equipment, making it versatile for different setups. Ideal for use in high-pressure environments, this coupling meets industry standards for safety and performance.