• 3" Welded - Welded Main Frame
  
• 7/8" Overrall Thickness High Performance E3 Glass/Argon Gas/Enviro-Sealed
  
• Spacer System
  
• Semi Mono-rail Track System on Sliders (full contact rollers)
  
• Fusion Welded Main Frames and Sashes
  
• Steel Re-Inforced Lock and Keeper Rail with Interlocking Meeting Rail
  
• Industrial Brass Double Roller system
  
• Two locks on 48" & over
  
• Standard color is white - Tan and Adobe color option available
  
• Lifetime warranty

Meets specifications for Energy Conservation Incentives: [H.R.1 "Stimulus Bill" Part III Section 1121 (d) (4) Qualifications for Exterior Windows & Doors.