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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.

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

    450G Fixed

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  • 450G Casement In

    450G Casement In

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    450G Casement In

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    450G Casement In

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  • 450G Casement Out

    450G Casement Out

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    450G Casement Out

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    450G Casement Out

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    450G Casement Out

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    450G Casement Out

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  • 450G Project In

    450G Project In

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  • 450G Project In

    450G Project In

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    450G Project In

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    450G Project In

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    450G Project In

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    450G Project In

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    450G Project Out

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    450G Project Out

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    450G Project Out

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    450G Project Out

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    450G Project Out

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    450G Project Out

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  • 450X Casement In

    450X Casement In

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  • 450X Casement In

    450X Casement In

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  • 450X Casement In

    450X Casement In

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    450X Casement In

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    450X Casement In

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  • 450X Casement Out

    450X Casement Out

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    450X Casement Out

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    450X Casement Out

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    450X Casement Out

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    450X Casement Out

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  • 450X Project In

    450X Project In

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    450X Project In

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    450X Project In

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    450X Project In

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    450X Project In

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    450X Project In

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  • 450X Project Out

    450X Project Out

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    450X Project Out

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  • 450X Project Out

    450X Project Out

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  • 450X Fixed

    450X Fixed

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