SILENT MASTER S2 SM1 DUCTED SYSTEM FOR HOMES UP TO 750 SQUARE METERS SUITABLE FOR UP TO 90 METER PIPE RUN INCLUDES A 9 METER HOSE KIT Silent Master ducted vacuums are manufactured by MD Manufacturing Inc. Based in Bakersfield, California. They have been manufacturing ducted vacuums for over 45 years and are one of the worlds leading producers of ducted vacuum systems. Specifications: 3.2 HP Dual Motor System 2 X 2 Stage Fan Motors 2300 Total Watts 722 Air Watts Airflow 5760 L/m 6 Year Warranty Designed and Assembled in USA Convenient Machine Inlet Quick Change Bag Filter Liner 5 Stage Filtration 45 Litres Dirt Capacity Whisper Quiet 62 Decibels Powder Coates Steel Canister Height 810mm Diameter 380mm Includes: 9 Meter Hose Telescopic Rod Combination Carpet / Hardfloor tool Upholstery Tool Dusting Brush Crevice Tool Why is it recommended by us? In our opinion, the Silent Master would have to be one of the most powerful and also reliable ducted systems. We have been selling them for years and customers love it. 2 motors for greater power and yet relatively quiet, the silent master is great value for money.