Replacement Window Comparison Chart
Not sure which series is best for your home? Use this chart to compare our products side-by-side.
| Key Features | Potomac-hp | Fortis | Georgetown |
|---|---|---|---|
| Performance Grade | R65 | R50 | R45 |
| Air Infiltration (cfm/ft2) | 0.03 | 0.04 | 0.09 |
| Fusion-welded Frame | yes | yes | yes |
| Jamb Depth of Frame | 3 1/4″ | 3 1/4″ | 2 3/4″ |
| Main Frame Sill | sloped | sloped | sloped |
| Interior Colors | white and beige | white and beige | white and beige |
| VyCoat™ Exterior Colors | yes | yes | |
| VyWood™ Interior Laminate | yes | ||
| VyFoam™ | yes | yes | |
| Sash Configuration | dual | dual | dual |
| Fusion-welded Sash | yes | yes | yes |
| Lock and Keeper Composite Reinforcement | standard | standard | |
| Integral Locking Sash | yes | yes | yes |
| Cam Locking System | yes | yes | yes |
| Tilt-in Sash for Easy Cleaning | yes | yes | yes |
| Integrated Sash Lock and Tilt System | yes | ||
| Dual Vent Latch | yes | yes | yes |
| Balance System | constant force | constant force | constant force |
| Glass Strength | double-3.0 mm | double-3.0 mm | single-2.5 mm |
| High-Performance Low-E glass | yes | yes | yes |
| High-Performance Triple Silver LoE™ Glass | optional | optional | |
| Insulating Glass Unit (IGU) Thickness | 7/8″ | 7/8″ | 3/4″ |
| Warm Edge Spacer System | Super Spacer® | Super Spacer® | DuraTex® |
| TripleSilverLoE™ Glass Package | yes | yes | |
| Energy Saver Max™ Glass Package | yes | ||
| Energy Saver R5™ Glass Package | yes | ||
| Energy Saver R5™ Glass Package W/Triple Silver LoE™ | yes | ||
| Flat Grids | yes | yes | yes |
| Contour Grids | yes | yes | yes |
| Simulated Divided Lites (SDLs) | yes | ||
| Screen Frame | extruded | extruded | extruded |
| Fiberglass Screen Mesh | yes | yes | yes |
| VyClear™ Screen | standard | standard | standard |
| Mortised Sill Dam Wall | yes | yes | |
| Sill/Sash Interlock | yes | yes | |
| Magnetic Seal | yes | ||
