Milgard Windows Mastri premium replacement vinyl windows and patio doors series meets the needs of Midwest and East Coast homeowners looking to invest in affordable yet durable, high quality replacement vinyl windows and doors. Features include: argon gas-filled, dual-glazed insulated glass unit featuring non-metallic Super Spacer technology to separate the glass panes and reduce energy loss; SunCoat low-e insulating glass; weather-stripping seal combined with a triple interlock frame on the double-hung windows to prevent air slippage around the operable window sashes; dual pane glass and noise-dampening frame configurations; ENERGY STAR qualified for all U.S. climate zones.Style and design choices include white or beige frame colors, which are solid throughout the frame to hide scratches; optional interior natural woodgrain finishes, including light oak, medium oak and cherry.
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