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.

	Double-Hung	Manufactured	Features	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
	1-Lite	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