NUCI399RK
To properly install CI399 Electra-Valve II Inlets (sold separately) you'll need to use the NuTone Electra-Valve II Wall Inlet Rough-In Kit. This kit comes with everything needed for a complete installation, including a mounting plate, snap-in power receptacle, plaster guard with mounting screws, and the CF382S elbow.
With their powerful motors, NuTone built-in central vacuum systems pull dust, dirt and allergens from the living environment more effectively than portable vacuums, trapping them within the filtration system of the power unit, away from the living environment. The central vacuum system can also be used more effectively to "power dust" furniture and living space by removing the dust from the living areas rather than just moving it around. And unlike conventional vacuum cleaners, a NuTone central vacuum system is a long-lasting built-in convenience that actually adds value to your home.