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Rackmount Options > Part #: AS3-22
SKU #: DF1117

Middle Atlantic Adjustable Heavy Duty Vented Rack Shelf, 3U Space (5 1/4")

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Middle Atlantic Adjustable Heavy Duty Vented Rack Shelf, 3U Space (5 1/4")

The versatile AS3-22 shelf rackmounts most video decks.


  • 5-1/4” rack height (3U space)
  • Supports 500 lbs
  • Knock-down for freight and space economy (ships flat)
  • Note: Fits in racks with a minimum 22-1/2'' useable depth


  • Overall: 17.38" W x 22.25" D
  • Overall Product Weight: 16.4lbs

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Middle Atlantic Adjustable Heavy Duty Vented Rack Shelf, 3U Space (5 1/4")

Weights & Dimensions

  • Overall: 17.38" W x 22.25" D
  • Front to rear mounting adjustment range from 19-1/2'' to 28'' deep
  • Overall Product Weight: 16.4lbs


Product Type: ShelvesCountry of Manufacture: United States

About the Manufacturer

Middle Atlantic Products, Inc., an ISO 9001:2000 registered company, is a manufacturer of engineered mounting solutions. Their customer-first philosophy places special emphasis on quality, service, and meeting the everyday working needs of end-users. All of their products are designed from the installer’s point of view. From thermal considerations and built-in cable management on our racks and enclosures to pre-installed washers on our rack screws they look at all aspects of an installation to find ways to save time and simplify the job.

Middle Atlantic's customer-first philosophy doesn’t stop with their products. They have a fleet of regional delivery trucks that are based out of their New Jersey, Illinois and California facilities that deliver products throughout the majority of the country. In addition, Middle Atlantic's demonstration vehicles are always on the road displaying their products and providing a hands-on look at the unique features and benefits. RackTools™, which is a free layout and design package that they have developed, makes it easy to design your racks and enclosures and also generate Purchase Orders and Quotes effortlessly.

Founded in 1979 by President Bob Schluter, the firm maintains manufacturing and administrative facilities in Fairfield, NJ. At the heart of Middle Atlantic's technical prowess lie manufacturing capabilities led by laser-fabrication cells which produce smooth edges that are friendly to both cables and contactors hands and arms, automated forming lines, robots and high-speed turret presses that provide quick throughput to allow us to ship from stock . Complementing this formidable array of sophisticated machinery is a state-of-the-art environmentally friendly powder coat line that produces a scratch and corrosion resistant finish, as well as a variety of automated support equipment including CNC spot welders. Middle Atlantic's extensive selection of standard products includes steel rack enclosures, monitoring consoles, data cabling management products, audio and video studio furniture, power distribution products and related accessories.

Middle Atlantic Adjustable Heavy Duty Vented Rack Shelf, 3U Space (5 1/4")

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When you buy a Middle Atlantic Adjustable Heavy Duty Vented Rack Shelf, 3U Space (5 1/4") online from Wayfair, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Middle Atlantic Part #: AS3-22 here. If you have any questions about your purchase or any other Rackmount Options product for sale our customer service representatives are available to help.Whether you just want to buy a Middle Atlantic Adjustable Heavy Duty Vented Rack Shelf, 3U Space (5 1/4") or shop for your entire home, Wayfair has a zillion things home.
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Well Constructed

from San Diego, CA – Verified Buyer

Heavy steel construction ensures stable mounting in any rack. I have only used the front mount. I don't yet know if I need to secure the back.

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OUR SKU # DF1117

Adjustable Heavy Duty Vented Rack Shelf, 3U Space (5 1/4") is also sometimes listed under the following manufacturer numbers: AS3-22