icon-address.png1276 W. Main St.  Bellevue, OH  44811

DH900 Double Hung

Aluminum Window System










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Capitols’ DH900 aluminum window system is comprised of a 5-piece master frame with concealed thermal breaks.  This structurally advanced performance-rated window system incorporates an original “The Maze” sash interlock with triple weather-stripping at all verticals.  The tilt-in sash is built on a continuous guide, keeping sash tracking in the frame for easier operation.  Our adjustable balance systems are concealed, thus reducing vandalism.


  • Custom sizes to fit virtually any application
  • 3-1/4” H-AW50 rated window
  • Designed for educational, monumental, institutional, historical, & commercial building use
  • 3/4“ thick insulated glass with marine glazing
  • Caldwell Aluma-Tilt adjustable balance system
  • Pour-and-debridged thermally broken mainframe and sashes
  • Head locks automatically when sash is closed
  • Sash tilt-in for easy cleaning
  • White bronze sweep lock
  • Original “The Maze” sash interlock with triple weather-stripping at verticals
  • Aluminum wire mesh insect screen at lower sash
  • Available in a variety of anodized or painted finishes


  • Grids
  • Multiple Trim Options:  receptors, mullions, pannings, sills, snap trims
  • Full insect screen
  • Caldwell Ultra-Lift balance system



Series Glazing Infill Frame Depth Rating Muntins Water Resistance
DH900 3/4" 3-1/4" AW50 YES 10 psf

*Varies upon glass make-up or infill type


DH900 Photos

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