Brown dog resting on a white couch with gray pillows in a bright modern living room with glass doors.

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Modern living room and dining area with large glass doors opening to a patio overlooking autumn trees.

Why Ultrex® Fiberglass?

Infinity by Marvin fiberglass windows and doors are built with Ultrex® fiberglass, making Infinity windows stronger than vinyl windows and requiring less maintenance than wood windows.

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