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The HX45 is loaded with options to fit many applications while providing an industry leading U-factor. The energy efficient design provides a substantial improvement in the interior frame temperatures as well. Both block and tackle and class 5 balances are available along with the quality auto locking and sweep lock hardware that has been a part of other EFCO products for many years. Designed to meet the increasing demand for thermally superior products needed in schools, government buildings and green construction, EFCO HX45 double hung window sets a new standard. The outstanding U-factor provides demonstrable energy savings when used in a conjunction with building envelope performance software.

Standard sash
1 1/2" glass pocket
blinds available
dual glaze option
Snap-in grid sash
1" glass pocket
Fixed mate, series FX45
U-factor = .31
  • FX45

    FX45

    Details
    Elevations
  • FX45

    FX45

    Details
    Elevations
  • HX45

    HX45

    Details
    Elevations
  • HX45

    HX45

    Details
    Elevations
  • HX45

    HX45

    Details
    Elevations
  • HX45

    HX45

    Details
    Elevations
  • 1" Open Glazing

    1" Open Glazing

  • 1" Open Glazing for Grid

    1" Open Glazing for Grid

  • 1" Open Impact Glazing

    1" Open Impact Glazing

  • 1" Open Impact Glazing for Grid

    1" Open Impact Glazing for Grid

  • Dual Glazing with 1" Blinds

    Dual Glazing with 1" Blinds

  • 1" Open Glazing

    1" Open Glazing

  • 1" Open Impact Glazing

    1" Open Impact Glazing

  • Dual Glazing with 1" Blinds

    Dual Glazing with 1" Blinds