- Works with 400 Series Gliding Windows manufactured from 1991 to Present.
- Sandtone exterior color and natural wood interior.
- This new High Performance Low-E4 glass replaces previous versions of Low-E glass.
- Low-E4 glass showed up to 25% in saving on cooling bills and 10% on heating bills over ordinary dual pane glass.
- This new glass reduces water spots up to 99% - Glass will stay cleaner.
- 20-year limited warranty.
- Visible glass dimensions are 18-9/16" wide by 33-1/8" high.