Delivers 550 air watts of power to ensure deeper cleaning than conventional upright vacuums; UL Listed for your confidence Large 6 U.S. gallon disposable bag (only needs to be emptied every 6 months on average) collect dust better than ever. Uses NuTone model 391 Vacuum Bags. Large ergonomic latches on the debris pail make emptying your central vacuum easier - debris pail handles flip open to remove the disposable bag for a quick and easy debris disposal Thru-flow motor combined with Sound-absorbing high-performance material and assembly techniques make these vacuums among the quietest in the industry ensuring quiet operation that won't disturb the household while you vacuum; no muffler required Multi-direction vacuum connection for easy installation even in small spaces; six foot power cord included for even more convenience Designed for homes up to 4,000 ft.² (372 m²), this power unit offers 550 air watts of suction power. Compact and efficient, the PP5501 is a quiet unit, producing virtually no noise when vacuuming if installed in a basement or garage. By combining suction power and high-performance filtration, Nutone central vacuums represent a healthy solution for the well-being of your family and may even help to reduce symptoms associated with allergies and respiratory problems.