900 Series Aluminum Double Hung Window System
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.