4000 Series Windows
The Vytex 4000 Series windows are an affordable choice for budget-conscious customers who want to add light and value to their homes. These single-hung windows are built strong, with fusion-welded frames and sashes. And with an integral nailing fin and siding return, there's no need for j-channel in siding applications. Available in white or beige, the 4000 Series will complement any home's color scheme. Vytex's 4000 Series offers an unbeatable combination of value, durability, and beauty. They are ideal for single and multi-family homes, apartments, and condominiums.

Single-hung
The slim-line design of our 4000 Series single-hung windows complements any décor and provides added light and excellent ventilation.
Single-hung Twin
Two single-hung units in a continuous one piece frame which eliminates the need to mull two separate units together.
Enhance the energy-saving capabilities of your Vytex's 4000 Series windows with these features:
Vytex DuraTex™ Warm Edge Spacers
All insulated glass (IG) is not created equal! Our versatile warm edge technology spacer system helps you save on your energy bills by:
- Insulating frame and edge of glass up to 90% better than other spacer systems.
- Improving performance of argon and krypton gas-filled insulated glass units (IGUs) and Low-E glass. DuraTex™ keeps argon in and Low-E glass clear.
- Reducing conductivity and total window U-value (heat transfer).
- Improving resistance to condensation.
Energy Saver Plus™
- Double-paned with one pane of Low-E glass.
- Argon gas-filled IG six times more dense than air.
| Products | Type of Glazing | U-value | Solar Heat Gain Coefficient | % Visible Light Transmission | ENERGY STAR® Compliance | Qualifies for Energy Tax Credit |
| 4000 Series | ||||||
| 4000 Series Single-hung | Dual Glazed Low-E Glass w/ Argon | 0.29 | 0.23 | 0.51 | All Regions | Yes |
| 4000 Series Single-hung | Dual Glazed Low-E Glass w/ Argon/Grids | 0.29 | 0.21 | 0.46 | All Regions | Yes |
| 4000 Series Picture Window | Dual Glazed Low-E Glass w/ Argon | 0.28 | 0.24 | 0.53 | All Regions | Yes |
| 4000 Series Picture Window | Dual Glazed Low-E Glass w/ Argon/Grids | 0.28 | 0.22 | 0.48 | All Regions | Yes |
| 4000 Series Slider | Dual Glazed Low-E Glass w/ Argon | 0.29 | 0.23 | 0.51 | All Regions | Yes |
| 4000 Series Slider | Dual Glazed Low-E Glass w/ Argon/Grids | 0.29 | 0.21 | 0.46 | All Regions | Yes |
- All windows are tested and certified to National Fenestration Rating Council (NFRC) standards.
- ENERGY STAR® compliant windows are rated, certified, and labelled for U-value and solar heat gain coefficient per NFRC.
- All Vytex Low-E insulated glass units (IGUs) contain argon or krypton gas.
- Values for units with grids are based on 8mm x 18 mm or smaller divider size.













