R12 Four Wire Spiral Hose Hydraulic Rubber Hose/Oil Hose Executive Standard:SAE 100R12 Construction: Tube:Oil resistant synthetic rubber. Reinforcement:Four high tensile steel wire spiral layers (4 W/S). Cover:Abrasion and weather resistant synthetic rubber. Temperature range:-40C to +12 C. Applications: Ideally suited for high-impulse applications. No skiving required with W-Series fittings. Recommended for petroleum and water-bases hydraulic fluids in very high pressure applications. Meets or exceeds all SAE 100R12 specifications.