US made SilentMaster S44
The most powerful unit in its class features a dual turbine motor, mounted in a steel frame and body. Costing about 20 cents/hour to run, it represents efficient power. This makes the S44 an innovative addition to the 2008 MD product line for homes up to 8000 sq/ft.

Be sure to download MD Manufacturing's technical document, "
Does Green Exist in a Vacuum?" and learn about the true green aspects of a central vacuum system.
Call: 800-525-2055.
www.builtinvacuum.com/s44