Double Hung "4900" Series
Double Hung, 2-Lt Slider, 3-Lt Slider, Picture Window (Available as replacement window only)

Window Series: 700 | 800 | 2900 | 4800 | 4900 | 6100 | Warranty

Our 4900 Series window is our most popular window line. It features fully welded frames and sashes on the double hung and sliders and a fully welded frame on the picture window. Made from AAMA certified lineals, this series is NFRC rated and labeled and is available for replacement applications. Some of the features of this window include a true sloped sill, tilt in sashes, a narrow high quality frame designed to allow in the maximum amount of light and a thermally efficient Intercept® glazing system. For a complete listing of available options on this and all of the United Window and Door products, please use the link to go to our Quick Reference page.

Available Options

  • Grids between the glass for easy cleaning and good looks.

  • Smarter Low-E Glass

  • Obscure Glass

  • Tempered Glass

  • AAMA Certified Lineals to insure high quality.
  • NFRC Rated for easy comparison to other windows.
  • Tilt-in sashes for easy cleaning
  • ecessed tilt latches on top and bottom sash for easy sash tilting.
  • Coextruded lift rail for solid construction.
  • Night / vent latches for ventilation.
  • White in color (Standard).
  • Made on the 1/16" for width and height.
  • Welded Frame for durability
  • Welded Sashes for air tight seal.
  • True Sloped Sill to insure easy drainage.
  • Locking half screen (Standard).
  • Block & Tackle balance for easy sash operation.
  • Wafer style jamb adjusters for easy installation.
  • 3/4" Intercept Spacer Insulated Glass Unit.
  • Silicone glazing for a quality seal.
  • 20 Year Glass Warranty.

Manufacturing Specifications

(All sizes are width x height)


Minimum Size Maximum Size
Double Hung 16 1/2" x 24" 48" x 77"
2-Lt Slider 24" x 16" 96" x 72"
3-Lt Slider 51 1/2 " x 16" 120" x 72"
Picture Window 9" x 9" 72" x 84"
14" x 14"
60" x 84"
Twin Replacement
33 1/2" x 24"
84 3/8" x 77"

Varies per shape. Please contact United for details.

All of our windows and doors are manufactured from AAMA certified lineals and are NFRC rated and labeled
Visit the manufacturers website at
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