VacuMaid S2400 Cyclonic Power Unit 631 max airwatts, 121 CFM, 142 Sealed Vacuum inches waterlift, for homes up to 10,000 sq ft Manufactured in the USA Ametek Lamb 7.2 tangential bypass motor provides powerful cleaning capabilities AirChannel - Allows a can liner to be used for mess-free debris disposal No messy filters to clog or clean. Virtually 100% sustained cleaning power.