The Okna 700 Series Casement window Deluxe is a popular choice for homeowners looking for energy efficiency and performance. These windows feature a multi-point system for locking down the window providing added  strength and lower air infiltration. 

  • 17% Better U-Value than Energy Star® minimum
  • 3000% better air infiltration protection
  • Grid option between glass
  • Fully welded frame & sash with triple weather stripping 
  • Easy operation easily adjustable
  • 4 exterior color options
          Energy Star Comparison To
Glazing Option U-Value SHGC VT CR Minimum** Energy Star Minimum
Dual Glazed              
Deluxe 0.25
61 0.30 17% 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