The FLEX TECHNOLOGIES 2.25" ID x 3' 4 ply polyester reinforced coolant hose in blue provides efficient and reliable performance due to its resistance to temperature variations. The hose features a smooth interior surface that minimizes friction, ensuring effective coolant flow. The blue color not only adds aesthetic appeal but also allows for easy identification within engine bays. With a foot length offering ample reach for most standard setups, the reinforced construction of this hose reduces the risk of leaks and bursts under pressure, maintaining performance and functionality.