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Credit: Bilyana Dimitrova

Marvin Windows and Doors has introduced Tripane with Krypton, an option for the company’s windows that enables the windows to perform to a U-factor of 0.2 or lower. The option is available with a range of low-E coatings specified for climate zones. It also is Energy Star–rated and certified by the National Fenestration Rating Council. marvin.com; 888.537.7828.