Pace Edwards UltraGroove Electric Retractable Tonneau Cover Silverado Sierra 2500/3500HD Cognito 4" Adds 2 additional quarts of

Adds 2 additional quarts of fluid capacity

including the M-Series Tonneau Cover

Suspension Maxx has the solution

It also retains the "Demand Flow" from the previous AirDog II variants

Pace Edwards UltraGroove Electric Retractable Tonneau Cover Silverado Sierra 2500/3500HD Cognito 4" Adds 2 additional quarts ofHands Free Operation Key fob operation delivers simple, hands free functionality for opening, closing and even locking the cover in any position with the electro magnetic brake system. The electric motor wires to the truck battery for a power source. Rail Expansion System With the useful RES (Rail Expansion System) a Pace Edwards Rack, Thule or Yakima system can be used to carry items along with the tonneau cover. So haul bicycles, ladders, skis,