Equip your semi truck to be Ready for the Road Ahead , with the Bendix 3/8" Female NPT DV-2 Automatic Reservoir Drain Valve, a key component that rapidly removes excess moisture. Due to its sophisticated design, this replacement valve is able dispel excess moisture before it can cause damage to an air brake system. Engineered with a pressure and heat-resistant body to prevent accidental leaks. FleetPride is your First Click in Heavy Duty .