The 500 Series is our most popular choice for performance and value. The Insul-Tec is a great window for a great price. There are many glass options to choose from the clear glass double pane is the budget conscious choice for a maintenance free high quality picture window.
  • 3000% Better AI protection
  • Full 3┬╝" Depth Welded Mainframe 
  • Excellent craftsmanship
  • Vinyl windows are strong and durable 
  • Foam filled frame for greater performance
  • Beautiful, and strong for years of long lasting maintenance free performance.
  • Heatseal┬« warm edge spacer system drastically reduces the possibility of condensation on the inside of the window.
  • Available in Replacement and New Construction applications
        Energy Star                                                                                                                                                Comparison To
Glazing Option U-Value SHGC VT CR Minimum* Energy Star Minimum
Dual Glazed              
Clear Glass 0.46 0.63 0.65 46 0.30 Does not qualify
    Industry Comparison To  
  OKNA Windows Minimum Industry Minimum  
AAMA Rating   R75 R15      
Air Infiltration cfm/ft2 <0.01 0.3 3000% Better
Water Penetration mph     66 33   100% Better  
Structural Integrity mph   210 94   123% Better