The Demco DUO brake control combines air pressure activation with vacuum assist to create a proportional, progressive braking system for towed vehicles. Using dual signals from deceleration and coach brake lights eliminates complex electronics, providing reliable, consistent brake application for every car and motorhome.

• Portable proportional brake system
• Combines air pressure and vacuum assistance
• Integrated breakaway system for safety
• Dual-signal progressive activation
• No pulleys, catches, or springs required
• Installation time: Approximately 30 minutes
• 5-year limited warranty