Demco Stay-In-Play DUO Supplemental Braking System | Proportional Air/Vacuum Brake for Towed Vehicles

Demco's Stay-In-Play DUO combines the power of air pressure with the gentleness of vacuum assist to create a proportional, self-contained supplemental braking system for your towed vehicle. It applies your dinghy's brakes in proportion to how hard you're braking the coach, rather than delivering an on/off jolt.

• Air pressure activates the tow vehicle's brake pedal while vacuum assists the power brake system
• Proportional, progressive braking response instead of all-or-nothing
• Requires both coach deceleration and a brake-light signal before it engages
• Self-contained unit with no permanent modifications to your towed vehicle's brake lines
• Compact enough to stow when you're not towing

If you tow a dinghy behind your motorhome, the DUO helps take load off your coach's brakes and adds confidence on downhill grades and panic stops.