Demco Air Force One is the only supplemental braking system that includes the necessary components to meet Total Coach Protection safety regulations. With no moving parts to wear out, your Air Force One will stand the test of time. It's the only air brake system that energizes the towed vehicle's power brakes through a patented process that doesn't require an electronic vacuum pump. It uses a pilot signal from the coach's air brake system to deliver 100% direct proportional braking. And in the event of a separation of the coach and towed vehicle, Air Force One is the first and only supplemental brake system that seals the coachs air supply. No other air-operated system offers this level of safety and control. The Coach Air Assembly is pre-assembled and pre-tested for function and leaks. Its compact size (approximately 12" x 10" x 6") and flexible mounting options make securing to the coach with two 3/8" bolts a snap. All fittings are included and are push-to-connect style DOT rated.• Uses a pilot signal from the coach's air brake system to deliver 100% direct proportional braking• Only air brake to meet DOT and chassis regulations• No pulleys, catches, or springs• Patented actuator is durable and easy to install• Fits every car and motorhome• Comes complete with everything needed for installation• 5-year manufacturer warranty Delivers 100% direct proportional braking Compact size & flexible mounting options Comes complete with everything needed for installation | Demco Air Force One Flat Tow Brake System With Wireless Coachlink Monitor for Air Brakes