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All Ultrex Glider

Glider windows are the perfect alternative to casement windows where a swinging sash is not practical. Each Integrity Glider window is manufactured specifically for horizontal operation, unlike other gliders that are essentially double hung windows turned on their sides. The strong Ultrex fiberglass interior and exterior ensures the window glides smoothly and stays true on even our largest Glider windows.

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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

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

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