With the assurance you are Ready for the Road Ahead , the Hendrickson 11.9" Thermoplastic Straight Fitted / Inboard Stem Positioned Tiremaax Hose as a high-quality tire hose designed for use in heavy duty vehicles. The Tiremaax system uses advanced technology to monitor tire pressure and automatically inflate tires, as necessary. The outer cover of the hose assembly is made of durable construction that resists wear and tear from UV exposure, ozone, and other environmental factors. The hose assembly replacement features a straight design, permitting both easy installation and maintenance. Furthermore, the hose assembly is designed to resist kinking and collapsing, providing proper airflow and tire inflation your semi truck requires. FleetPride is your First Click in Heavy Duty .