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2. 5 Home Depot Items Homeowners Need To Buy Ahead of ... - AOL

   www.aol.com/5-home-depot-items-homeowners...

   The Shark Stratos AZ3000 Upright Vacuum with duo clean power fins, hair pro and odor neutralizer technology is a Home Depot special buy at $299.99 — $200 off the original price.

3. Central vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Central_vacuum_cleaner

   Central vacuum systems also started to become popular among European consumers interested in their hygienic and convenience benefits. By the 1990s, central vacuum systems gained popularity among real estate agents and home remodelers for the value they added to homes at resale.

4. Vacuum flange - Wikipedia

   en.wikipedia.org/wiki/Vacuum_flange

   A vacuum flange is a flange at the end of a tube used to connect vacuum chambers, tubing and vacuum pumps to each other. Vacuum flanges are used for scientific and industrial applications to allow various pieces of equipment to interact via physical connections and for vacuum maintenance, monitoring, and manipulation from outside a vacuum's chamber.

5. Pneumatic tube - Wikipedia

   en.wikipedia.org/wiki/Pneumatic_tube

   A pneumatic tube system in Washington, D.C., in 1943. Pneumatic tubes (or capsule pipelines, also known as pneumatic tube transport or PTT) are systems that propel cylindrical containers through networks of tubes by compressed air or by partial vacuum. They are used for transporting solid objects, as opposed to conventional pipelines which ...

6. Vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Vacuum_cleaner

   The power unit of a typical central vacuum cleaner for residential use. Central vacuum cleaners, also known as built-in or ducted, are a type of canister/cylinder model which has the motor and dirt filtration unit located in a central location in a building, and connected by pipes to fixed vacuum inlets installed throughout the building.

7. Materials for use in vacuum - Wikipedia

   en.wikipedia.org/wiki/Materials_for_use_in_vacuum

   A better choice for vacuum systems is the tin-silver eutectic, Sn95Ag5 (Sn-Ag eutectic is actually 96.5-3.5); its melting point of 230 °C (446 °F) allows bakeout up to 200 °C (392 °F). A similar 95-5 alloy, Sn95Sb5, is unsuitable as antimony has similar vapor pressure as lead. Take care to remove flux residues.