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Wonder Extreme

Extreme = Warm Edge Triple Heat Shield Krypton Technology with foam filled frame.

  • Foam insulated frame
  • Triple Heat Shield with Krypton technology
  • Available with most window types and styles
  • Guaranteed to resist wind, rain, snow and heat
  • Lowest air infiltration 
  • NFRC U-Factor: 0.18  Air Infiltration: <0.01   Solar Heat Gain: 0.27