Wausau, Wis.-based Kolbe and Kolbe Millwork Co. expanded its line of Ultra Series Pocket Double Hung Replacement Windows with the arched-top, segment-head window that can be used in assisted living and multifamily dwellings. The window can be installed from either interior or exterior without removing existing trim and framework. A 3.25-inch pocket jamb depth fits most standard applications, according to a company release. Made of a 0.05-inch-thick extruded aluminum, the exterior frame and 1.75-inch-thick sash are coated with a 70-percent fluoropolymer finish in a wide range of colors. Interiors may be pre-finished with a variety of wood species. The window comes standard with low-E insulating glass.Kolbe and Kolbe Millwork Co.