XRP -4 Stainless Steel CPE Race Hose. Stainless Steel outer braid provides durability & heat resistance. Scientific elastomer, CPE (Chlorinated Polyethylene) inner tube provides broad race fluid compatibility. This hose is known for its superior outer braid adhesion, making it easy to assemble. Beware of lesser quality hose with poor adhesion or weaker textile inner braid! MADE IN USA!