Product Details: The Gates Hydraulic Coupling is the perfect solution for leak-free connections in hydraulic hoses and tubes. This coupling is made from zinc plated carbon steel for superior durability and resistance to rupture under high pressure. It is also coated with Dura-Kote for superior corrosion resistance. It is ideal for medium to high pressure hydraulic hose applications, such as fuel delivery and is designed for quick installation. FleetPride is your First Click in Heavy Duty®.