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3 7/8" Architectural Grade Double Hung Windows

by Efco Windows
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Manufacturer's Product Description

Series 6620 Fixed (TS) ¥ Series 672 (T) The Series 672 double hung window retains an AAMA Architectural Grade rating and is a proven performer in projects ranging from historical replication to new construction. The upper sash meeting rail is thermally improved using a two-part high density polyurethane. All remaining members are thermally enhanced with E-Strutª thermal isolators. Offered with a complete line of sub frames, mullions and architectural sills, this product family provides the complete solution for fenestration needs.


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