EFCO 2250i, 3250i, 4250i-XLT Historical XTherm™ window offers beveled, square, ogee, or cove glazing to replicate historical putty-glazed windows.

Muntins are available for historical renovation - choose from true divided lites, removable grids, between-glass, or tape-applied options. These windows have a dual-glazed option with hinged or lift-out access panels.