Prepare your semi to be Ready for the Road Ahead , with the Parker-Hannifin 1" Female NPTF High-Flow Brass Hydraulic Coupling that offers a smooth transfer of power between hydraulic components. Thanks to its streamlined design, this replacement coupling provides a quick and easy connection between hydraulic fuel lines such as hoses and pumps. Crafted with a rugged metal body to withstand demanding conditions and extreme pressures. FleetPride is your First Click in Heavy Duty .