1111c_EH_MD_silentstealth_big_8.jpg(300)M.D. Manufacturing. The SilentMaster vertical bag-type central vacuum boasts a patented noise-reduction system with total output under 62 decibels. The filtration system offers a proprietary, three-ply, disposable media that does not require venting, although optional venting is available. It has a large 12-gallon debris bucket. The line includes four motor sizes, from 458 to 905 air watts, for homes up to 20,000 square feet. It comes with a six-year warranty. 800.997.2278 www.builtinvacuum.com/silent_master