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Procomm Vacuums

MD Manufacturing

SilentMaster

The Gold Standard

MD Manufacturing’s patented noise suppression system has set the industry standard for quiet power unit operation. Designed and assembled in the USA since 1961.

MD SilentMaster Central Vacuum Unit

900

Air Watts

64

dBa Quiet

12

Year Warranty

20K

Sq Ft Coverage

Why SilentMaster?

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Ultra-Quiet Operation

Patented noise suppression technology delivers whisper-quiet performance — the quietest in the industry.

Dual-Motor Power

High suction and airflow simultaneously sustains powerful cleaning throughout your entire system.

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Tru-Seal® Filtration

5-ply microfilter removes particles as small as 0.3 microns — improving air quality and reducing allergies.

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8-Gallon Capacity

Industry-leading debris capacity means fewer bag changes and more uninterrupted cleaning.

Model Lineup

ModelAir WattsMotorsVoltageCoverage
S460r460Single120VUp to 8,000 sq ft
S500r495Single120VUp to 10,000 sq ft
S560r560Single120VUp to 12,000 sq ft
S720r2720Dual120VUp to 15,000 sq ft
S900r / S900r2 ⭐900Dual120V / 240VUp to 20,000 sq ft

Built to Last

Industry-Leading 12-Year Warranty

SilentMaster’s transferable warranty covers normal wear and tear — plus a lifetime guarantee against defects in materials and workmanship.

Each motor has its own cooling fan ensuring extra longevity. North American Ametek motors and all-steel construction deliver reliable, lasting performance.

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Made in USA

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Easy Service

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Universal Fit

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Cleaner Air

Ready to Experience the Difference?

Get expert guidance on choosing the right SilentMaster for your home.