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- Contoured frame design with integral nailing fin.
- Dual-paned glass unit can be ordered with optional Low E glass and an Argon gas fill to maximize energy efficiency.
- Insulating glass unit is set ½” into the sash to keep edges warmer.
- Frames and sash, welded at the corners, create strong, effective units.
- Weatherseals placed at key points around each sash improve performance by reducing air flow.
- The U-channel spacer system is
more efficient than conventional box spacers — raising interior glass surface temperature by reducing conduction rates.
- Contoured grids are located inside the insulating glass unit for a smooth, easy-to-clean surface.
- Available with wood or Quick Trim™ cellular pvc jamb extensions — choose either 4-9/16″ or 6-9/16″ construction — for quicker installation.
- Comprehensive warranty.