DUO AIR CYLINDER KIT

The Stay-IN-Play DUO is an under-the-hood supplemental braking system for towed vehicles. It uses air pressure and vacuum to provide proportional and progressive braking, activating the towed vehicle brakes with both deceleration and coach brake lights. It also energizes the towed vehicle's power brakes without the engine running, replenishing vacuum for a soft brake pedal. The system includes "Coach Notification" which signals when the towed vehicle's brakes are applied via the brake pedal switch. It is designed for simple "Turn it on...and Tow" operation and is always ready to tow after a one-time installation.