An MRL (Machine Room-Less) elevator is a type of electric traction elevator that does not require a separate machine room. Instead, the MRL is designed to house the machine in the overhead area at the top of the elevator shaft, with control equipment located in a small adjacent room within about 150 feet of the machine. MRL elevators are typically less expensive than traction elevators, and more expensive than hydraulic elevators. There are advantages and disadvantages to the design of an MRL elevator vs. traction and hydraulic elevators. Talk to your Specialized Elevator representative for detailed information.