The Flex Technologies 4.5" x 6" Hot Side Air Intake Hose is designed to provide reliable performance over a long service life. This hose is constructed with a silicone aramid reinforced 4-ply, providing superior strength and durability. It also features 321 stainless steel restraint rings that reduce swelling and increase hoop strength. Additionally, this hose is ozone and UV resistant, ensuring it will stand up to the elements. With its superior construction and reliable performance, this hose is the perfect choice for any hot-side air intake system. FleetPride is your First Click in Heavy Duty®.