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  • Frame Depth: 3-1/4″

  • AAMA 101-05 Ratings :  LC-PG60

  •  7/8” Insulated Glass Unit

  • Fin Weatherstripping

  • Flexible Vinyl Glazing Channel

  • Low air Infiltration

  • Head Expander

  • Deep Interlock

  • Anti-Drift Head Clip Lock

  • Continuous Lift Handle

  • Block and Tackle Balance

  • 2604 Powder Coat Paint Finish

Series 3000 Aluminum Thermal Break Double Hung Side Load Windows

DESCRIPTION This Crystal® ThermoBlok™ aluminum side load window features a high performance frame structure, an innovative polyurethane thermal barrier technology that thermally breaks conductivity of the aluminum frame to substantially reduce thermal transfer from exterior of window to interiors, and “intercept” warm edge glass spacer technology. These integrated features reduce heating and cooling loads on HVAC systems, providing long term energy efficiency and utility savings to property owners. This series is ideal for multi-story commercial projects where high strength structural integrity of the window frames in essential.


  • • Diamond, Georgian or Colonial Grids

  • • Argon & Low-E

  • • Extruded Heavy Aluminum Screen

  • • Casement Fin 1-1/4” or 2” Side Jamb

  • • Sash Opening Keyed ”Limit Lock”

  • • Custom Color Finishes

  • • Glazing options available to meet many state and local municipality energy codes, call a Crystal representative to confirm glazing type required

  • • Heavy-Duty Crescent Cam Sash Lock With Keeper

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