Introducing Pro-Lite 390™ from Earl's! A perfect mix of Stainless under braid and fabric outer braid and 100% constructed in the USA. Pro-Lite 390 consists of an inner tube of oil resistant "PKR" synthetic rubber. A partial coverage stainless wire inner braid and an oil, weather, and abrasion resistant, black, entangled filament nylon fiber cover. This added stainless braid under the cover and over the liner, adds additional hoop strength for higher pressure ratings and added strength for tight radius applications. It also adds needed strength for high suction and vacuum conditions. Much more durable for extreme uses over Pro Lite 350 which does not have the inner stainless braid. For use with Swivel Seal, Auto Crimp, and Auto Fit hose ends.