Three panes of glass provide even more protection from those cold winters. The Deluxe 700 Series Casement from Wonder Windows is a superior choice for energy efficiency.

  • 33% Better U-Value than Energy Star® minimum
  • 3000% better air infiltration protection
  • Choose the Grid option between glass available in popular styles
  • Fully welded frame & sash with triple weather stripping 
  • Easy operation easily adjustable
  • 4 exterior color options plus custom colors available
Glazing Option U-Value SHGC VT CR Minimum** Energy Star Minimum
Triple Glazed              
Deluxe 0.20
70 0.30 33% Better

 * Values with GBG (Grids Between Glass)


      Industry Comparison To  
  Our Windows (33"x64") Minimum Industry Minimum  
AAMA Rating R 70 R 15      
Air Infiltration cfm/ft2   0.01   0.3 3000% Better
Water Penetration mph   N/A   33   Better  
Structural Integrity mph   N/A   94   Better