The triple pane Precision Weld 400 with krypton Gas provides the best performance ratings of a sliding widow in the series. Superior performance equals energy savings. If you demand the very best and still want a great price the Precision Weld 400 is definitely one to consider
  • 43% Better U-Value than Energy Star® minimum
  • 3000% better air infiltration protection
  • Choose the Grid option between glass it is available in popular styles
  • Fully welded frame & sash with double weather stripping 
  • Triple panes of glass reduces noise
  • Krypton gas
  • Clean modern look
          Energy Star Comparison To
Glazing Option U-Value SHGC VT CR Minimum* Energy Star Minimum
Triple Glazed              
Deluxe/krypton Gas 0.17 0.25 0.42 73 0.30  43% Better


      Industry Comparison To  
  Our Windows Minimum Industry Minimum  
AAMA Rating   R 35   R 15      
Air Infiltration cfm/ft2   0.01   0.3  3000% Better
Water Penetration mph   59   33  79% Better  
Structural Integrity mph   143   94  52% Better