Proflow's 450 series light weight hose is made from formulated Chlorinated Polyethylene CPE synthetic inner liner that can handle hydrocarbons and premium fuels including E85 ethanol. For use with exotic fuel systems including E10, E85, diesel, methanol and all premium unleaded fuels. Note: Not recommended for transmission lines or near high heat environments. Designed to be used with Proflow Hose Ends. Compatibility could be an issue with other manufactures' Hose Ends. This hose is not designed for use on high pressure power steering transmission, brake and high pressure hydraulic applications. Hose can be ordered in any length to suit your needs. A support spring may be needed in a vacuum application with tight bend radiuses.