At Lippert ™, we help you take the guesswork out of replacement parts by providing direct replacement components that will get your rig and your equipment up and running like usual. Our Above Floor and/or Through Frame replacement controller assembly will help get your RV's slide-out back to operating in no time. As an exact-match component, installation is easy and no assembly is required. The Lippert Above Floor slide-out system is a rack and pinion style slide system. Utilizing a bi-directional electric motor to actuate the drive shaft, the slide-out room is extended and retracted from the same source. The actuator has a built-in automatic braking feature. The Lippert Above Floor slide-out is designed as a negative or positive ground system.