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.The construction of the hose is made from a seamless synthetic rubber inner tube reinforcement consisting of one or more plies of synthetic fabric, and an abrasion, weather, and ozone resistant cover.