Series 8300

Our best value line of replacement windows, Series 8300, offers dual push button night latches , insulated glass panels and a transferable, limited lifetime warranty.

Our best value line of replacement windows, Series 8300, offers dual push button nightlatches for security, insulated glass panels for energy efficiency and a transferable, limited lifetime warranty. With energy efficiency in mind, our Series 8300 windows also offer state-of-the-art fusion welded frames to prevent air, water and noise infiltration keeping your home comfortable all year long. Each window is exceptionally crafted to be durable and comes with a transferable, limited lifetime warranty.

NEW: Series 8300 double hung and sliding windows now offer the option of the world’s first flexible window screen – FlexScreen!

Features & Benefits

  • Choice of Double Hung, Slider or Picture Window Styles
  • Double Hung DP 35 rating (window size tested 36” x 74”)
  • 2-Lite Slider DP 40 Rating (window size tested 78” x 48”)
  • Picture Window DP 50 Rating (window size tested 48” x 84”)
  • Dual push button night latches
  • Constant force coil balance on double hung styles
  • Extruded half screen
  • Transferable, limited lifetime warranty
Where To Buy
Series 8300 Double Hung Window
Series 8300 Double Hung
White 2 Lite Series 8300 Slider
Series 8300 Horizontal Slider
Series 8300 Picture Window Product Photo
Series 8300 Picture Window
Bay Window Product Photo
30 and 45 Degree Bay Windows
Bow Window Product Photo
3 to 5 Lite Bow Windows
Architectural Shape Windows

Energy Efficient Glass Options

Energy Star Program LogoAtrium windows and doors are engineered with state-of-the-art glass technology to give you outstanding thermal efficiency. With a full range of glass options and special insulated spacers, we have a glass package to fit any climate need or budget. Verify product specifics before ordering.

Low-E Glass

Low-E glass is coated with a microscopic layer of silver that reflects radiant solar energy while permitting visible light to pass through the glass, providing more comfort and lower energy costs.

Low-E Glass and Argon Gas

Argon gas works like an insulating blanket between two panes of glass to further improve thermal eciency and decrease outside sound levels.

Ultra Low-E Glass and Argon Gas

Choose our ultimate glass package for optimal energy efficiency and maximum cost savings. Ultra Low-E glass offers three invisible layers of silver coating in addition to the superior thermal performance of argon gas.

Additional Glass Options

Double Strength Glass

Obscure Glass

Vinyl Color Options



Exterior Paint / Laminate Options

Black (Paint)

Brick Red (Paint)

Bronze (Paint)

Clay (Paint)

Dark Chocolate (Paint)

Gray (Paint)

Hunter Green (Paint)

Tan (Paint)

Terratone (Paint)

Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.

Available Grid Patterns

Colonial (DH)

Colonial Top Sash Only

Vertical (DH)

Vertical Top Sash Only

Diamond (DH)

Diamond Top Sash Only

Prairie (DH)

Prairie Top Sash Only

Perimeter Prairie (DH)

Valance (DH)

Colonial (PW)

Vertical (PW)

Diamond (PW)

Prairie (PW)

Valance (PW)

Colonial (SL)

Vertical (SL)

Diamond (SL)

Prairie (SL)

Valance (SL)

Available Grid Types

1-Inch Contoured Grid

3/4-Inch Flat Grid

5/8-Inch Contoured Grid

5/8-Inch Flat Grid

Available Series 8300 Models

Atrium Product Specifications

Learn More

Atrium Installation Instructions & Videos

Learn More

Become An Atrium Distributor

Learn More

Windows 101 Video Series

Enjoy our collection of animated educational videos covering a variety of topics including condensation, window styles, window options, warranties, window/building codes and more.

Browse Windows 101 Videos