Why Choose MD Central Vacuum Systems?

For over 50 years, MD Central Vacuum Systems has been the benchmark for power, filtration, and quiet operation. Unlike portable vacuums, MD systems exhaust 100% of vacuumed air, dust, and allergens outside the living area, creating a cleaner and healthier home environment.

MD Central Vacuum Power Unit Models

MD offers four distinct lines of power units, each engineered for specific home sizes and filtration preferences:

1. SilentMaster® Series (Patented Quiet Technology)

The SilentMaster is world-renowned for its "Lid-Off" quietness. It features dual-motor power and a unique sound-dampening design.

• S460r: Compact power for homes up to 6,000 sq. ft. Features a 3-stage bypass motor.
• S560r: High-performance model for homes up to 8,000 sq. ft. with balanced suction and airflow.
• S900r: The heavy-hitter. Dual 3-stage motors designed for sprawling estates up to 20,000 sq. ft.

2. ModernDay® Series (The Original Industry Standard)

ModernDay units are built with rugged 18 and 20-gauge steel and are known for their extreme longevity and simple maintenance.

• M465h: Reliable cleaning for small to mid-sized homes (up to 5,000 sq. ft.).
• M615h: Increased water-lift for homes with extensive carpeting (up to 7,000 sq. ft.).
• M715h: Professional-grade power for large residential applications.

3. Flo-Master® Series (Powerful Thru-Flow Technology)

Flo-Master units use thru-flow motors for high-efficiency suction at a more accessible price point.

• F600t / F650t: Efficient units for homes 5,000 to 8,000 sq. ft., featuring the Tru-Seal® Closed Bag System.
• F700t: Maximum thru-flow power for homes up to 10,000 sq. ft.

4. AirMaster® Series

The AirMaster line is built for homeowners who want the durability of MD steel construction with versatile filtration options for smaller living spaces.

MD Central Vacuum Attachments & Tools

Your MD system is only as good as the tools at the end of the hose. We stock a complete range of MD Central Vacuum attachments for every surface:

MD Bags, Filters, Belts & Parts

To keep your 12-year warranty valid, only use genuine MD supplies:

• Tru-Seal® Bags: 8-gallon and 12-gallon options (MD814 / MD814L) that provide micro-filtration for a healthier home.
• Motor Filters: Foam and cloth secondary filters to protect the high-performance bypass motors.
• Belts: Genuine cogged belts for Stealth and Ace powerheads that prevent slipping and overheating.

Ace Vacuums: Your Certified MD Central Vacuum Dealer

At Ace Vacuums, we don't just sell MD products; we are factory-trained experts in *MD Central Vacuum Systems*. Serving Virginia, Maryland & Washington DC, our team provides professional installation for new construction and existing home retrofits. Whether you need a simple replacement hose, a specialized pet attachment, or a complete motor rebuild for your SilentMaster unit, our technicians have the parts and the "know-how" to get it done right the first time.