Features & Benefits: All Welded Frame & Sash, Sloped Sill Tilt take-out bottom sash for easy cleaning Sealed insulating glass with Duraseal™ warm edge spacer for optimum thermal performance Reinforced meeting rails with long-reach interlock for added strength and reliability Heavy duty locks with keepers and flush mounted tilt-latches for added security and neat appearance Dual weather-stripping for maximum air leak protection Double wall master frame provides added strength and improved insulation Block and Tackle sash balance never needs adjustment Continuous head and sill factory mulling standard- optional field mullion also available Optional low-e glass, tinted glass, obscure glass and tempered glass Optional 3/4" grids between the glass and 7/8" or 1-1/8" simulated divided lites Geometric and architectural shapes Full family of Single Hung, Single Slider, 3-Lite Slider, and Picture Window   Four J Weatherization Windows, Insulation, Energy Savings Made with Xara Window Cutaway