Cat hoses are designed to route liquids and gases through machine systems. These hoses are fabricated from superior materials to withstand application-specific pressures, vibration tolerances, and flow requirements for Cat heavy-duty equipment. Cat hydraulic hose and couplings are subjected to the most rigorous testing processes in the industry. Every Cat hose and coupling combination is tested as a system to ensure a perfect fit that yields maximum safety and dependability.Cat compact hoses also work at half the SAE bend radius, allowing tighter routing in a wide variety of applications.The construction of the hose is made from a synthetic rubber tube; two braids of special high tensile steel wire reinforcement separated by a synthetic rubber layer. The outer cover is oil, weather, and abrasion-resistant synthetic rubber.