Ostaco – Core Plus Window

CORE PLUS

WINDOW

THE PERFECT FIT

  • 4 9/16” vinyl frame with built in nosing
  • Thicker exterior sash walls (.090” versus .068”)

ENERGY EFFICIENCY

  • Rated Most efficient by Energy Star
  • Warm edge spacers recessed between the panes of glass both minimize glass edge conductivity while optimally containing the argon gas within the sealed units, obtaining a 90% argon gas fill rate

SUPERIOR QUALITY AND DURABILITY

  • Fusion Welded vinyl chambers
  • Offset groove creates a natural drip edge so water flows away from your window
  • Internal steel reinforcement channel to ensure optimal performance and operation for larger windows.
  • Mullion reinforcement pocket to facilitate structural reinforcement when combining large units.

PEACE OF MIND

  • Heavy duty hinge for larger triple pane units
  • Santoprene bulb seals improve sash/bulb contact area for a consistent seal and improved performance

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