Prepare your truck to have seamless control of your air brakes, with the OTR TW-1 Style Panel Mount Flipper Dash Valve with Expertise Built In™. This hand-operated replacement valve controls the air supply in your brakes, making it a great option for daily braking and emergency situations. Designed for quick and easy operation with a heat-resistant flipper toggle. FleetPride is your First Click in Heavy Duty®.