Outfit your air brakes to be Ready for the Road Ahead with a leak-free hose coupling, with the Power Products 3/8" x 1/2" Male Hose Brass Connector. Thanks to its seamless transfer of compressed air through brake lines in heavy duty trucks, this replacement brass connector is the ideal choice for fast and responsive brakes. Crafted with with a compact design for tight-fit applications, and a corrosion-resistant blend of copper and zinc. FleetPride is your First Click in Heavy Duty .