1- Pure Virgin Vinyl (PVC) Resin Frame
2- Network Insulating Air Chambers
3- Insulated Glass With Optimal Air Space
4- Interlocking Sash Meeting Rails
5- PPG Intercept Warm Edge Spacer
6- Metal Reinforcement At Meeting Rails
7- Exclusive Triple Lift Rails
8- Drop In Glazing
9- Full Capture Sill
10-Hidden Screen Track
11-Quad Four Weather Stripping
Features and benefits of the Alside window system
