
eXtreme Series 450
The Norandex eXtreme Series 450 Double Hung new construction window has a beautiful, true brick mould exterior frame perimeter. It's integrated J-channel and nail fin will help simplify installing these beautiful windows in any brand new home.
The eXtreme 450 comes with a Limited Lifetime Warranty and has optional 3 1/4" flat casing with bull nose design with a wide variety of interior and exterior color options.

Product Details

- Integrated J-channel and nail fin for simplified installation
- DP 35 rating (available with DP 50 option)
- Continuous head and sill on twins and triples
- Block & tackle balance system
- Insulated glass panels with optimum thermal airspace featuring warm-edge spacer
- Multiple grid options available
- Half screen standard
- Custom glass options
- Optional dual night vents for secure ventilation