Get your semi truck Ready for the Road Ahead with a rapid removal of excess water, oil, and air from a vehicle's air tanks, with the Bendix 3/8" NPT DV-2 Air Brake Reservoir Drain Valve. With a sophisticated design, this replacement valve is able dispel excess moisture before it can cause damage to an air brake system. Crafted with a pressure and heat-resistant body to prevent accidental leaks. FleetPride is your First Click in Heavy Duty .