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Integrity All Ultrex Double Hung

This classic window style gets a modern upgrade with an Ultrex fiberglass exterior and interior that delivers high style and a durable finish from every angle. They offer superior PG50 performance long lasting strength and durability. And for additional convenience, both the top and bottom sash tilt inward for easy cleaning.

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Ultrex Fiberglass

'The All Ultrex Series’ Ultrex pultruded fiberglass interior features a durable low maintenance white interior finish.

Stone White

Stone White

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Energy Information Finder

This tool provides some of the most common options on windows and doors and related NFRC certified values.

This tool is a guide only and does not reflect variations resulting from features and options not included in the tool. For more information about the energy efficiency of specific products and options, please contact your local Marvin sales representative.

The National Fenestration Rating Council (NFRC) has developed and operates a uniform national rating system for the energy performance of fenestration products, including windows and doors. NFRC does not recommend product and does not warrant the suitability of product for any specific use. For additional information regarding this rating system, see www.nfrc.org/WindowRatings.

See Energy Efficient Windows and Doors for further information on this topic.

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