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Marvin Ultimate Casement
Round Top

The Marvin Ultimate Casement Round Top is a great choice for designs that require large unobstructed views and the elegance of an arched shape. You can select from numerous round top shapes for design flexibility. The window is beautiful enough to use alone as a focal point, as a picture window, or in combination with other Marvin casement windows. The Ultimate Casement Round Top Window is also offered in larger sizes for grand views while still providing energy efficiency.

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Features & Options
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  • Site lines complement Ultimate Casement products
  • Can be mulled to other Ultimate Casement products
  • Available in large size
  • Tripane and many other glass types available
  • Both operating and stationary Casement Round Tops available
  • Vast and versatile design configurations
This product is CE certified.

Standard Specifications

  • One-lite Low E2 with argon insulating glass
  • Sightlines harmonize with Marvin Ultimate window products
  • White, black or beige sash weatherstrip – default dependent on exterior clad color
  • 4 9/16" jambs

Professional Resources
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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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