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Double-Hung Production Timeline

Eagle engineers aggressively refine double-hung windows to incorporate new technologies and styles. While minor improvements occur within individual products as noted in the Element at the parts level, the development of the double-hung can be understood as a progression of window models outlined in the chart below.

The ideal way to date a product is to refer to the original invoice, or CO, number. In many cases, you may rely on the date etched in the corner of the glass. However, since the production dates of the models can overlap and the sash might be a later replacement, refer to the distinguishing visual characteristics to determine which double-hung parts to order.

Section Detail

Updated Talon® (T7)

7/2007 - Present


Bottom rail height increased to 3¾ in., as viewed from the exterior


Vinyl sill dam not visible when lower sash is closed


Metal structural clips removed from impact versions

Talon Phase 3 E-Tilt

5/2003 - 12/2007


Contoured handle; wash/lock diagram on bezel

New Generation (NGDH) Phase 2 E-Tilt

8/2002 - 5/2003


Beige or white rigid jambliner with vinyl, metal or wood inserts

NGDH02 (Phases 1) with Box Screen

7/2002 - 8/2002


Ogee frame profile to accept box screen with plungers

NGDH with Flanged Screen

1996 - 7/2002


Ogee frame profile


Beige or white wing-back compression jambliner


Flanged screen with aluminum knife clips



1991 - 1996


Profiled sash, glass formula changed


Sash claddings overlap at check rail


Bulb weather strip at sill

Flat Clad

1984 - 1991


Flat profiled frame


Gray or white compression jambliner


Box screen with plungers and head pins

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