Glass Energy Packages

Three complete energy-saving glass packages, including:

• Double-paned with one pane of Low-E glass.
  
• Argon gas-filled insulated glass unit (IGU)—six times more dense than air.

• Triple-paned with two panes of Low-E glass.
• ArgonArgon gas-filled IGU.
• VyCore™ Foam insulated frame only or frame and sash.
• Exclusive to our Heritage Series.

• ArgonTriple-paned with two panes of Low-E glass.
• Krypton gas-filled IGU—12 times more dense than air.
• VyCore™ Foam insulated in frame only or in frame and sash.
• Exclusive to our Heritage Series.