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The 450X and 450G XTherm™ window series were developed to meet the increasing energy efficiency demands of today's marketplace. The deeper strutted thermal break allows for triple glazing while also providing superior thermal separation of the framing materials. This window system is an attractive and versatile product that can be utilized on a wide range of applications from educational, to office and healthcare facilities. Offered with a complete line of thermal subframes, mullions and architectural sills, the 450X and 450G provides the complete solution for your fenestration needs.


Accessory line of subframes, mullions, and architectural sills
Allows custom designs with standard product
35 mm E-Strut™ thermal isolator
Dual finish capability
Snap-in grid available with 450G version
Easily removed for exterior glass cleaning
35 mm E-Strut™ thermal isolator
Eliminates potential for dry shrinkage
Expceptional U-Value performance
Dual glazing with optional integral blinds
Improved energy savings and interior light or privacy control with low maintenance
Angle reinforced vent corners
Improves sash/vent rigidity
Vertical or horizontal stacking members
Increases configuration options
Wide variety of locking and operating hardware available
Permits hardware options to address specific requirements
Snap-in grid available with 450G version
Removes grid from glazing pocket
Screen frames are extruded aluminum alloy
Stronger more durable screens
Pressure equalization
Superior water resistance
Anodized or painted finishes available
Unlimited options to answer economic and aesthetic concerns
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  • <p>450X Casement In</p>

    450X Casement In

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