PTFE liner is an inert material, compatible with all oils and hydraulic fluids and has a heat range of -158?F to 500?F; shields oil systems from moisture, unlike other materials like nylon Feature stainless steel braided hose with PTFE inner liner and beautifully chromed mild steel hardware Stainless steel braid is superior in pressure rating, flame resistance, and volumetric expansion to all other materials, including rubber, resulting in unmatched durability Oil line lengths are determined by measuring the distance between the flares of the female swivel fittings All hardware meets 96-hour salt spray testing Made in the USA. LINE,OIL UNIVERSAL 10"