Series 450 Double Hung
Our top of the line Series 450 combines meticulous craftsmanship with the strength and maintenance-free beauty of rigid vinyl construction to deliver exceptional value and lasting durability. This tilt sash Double Hung window features a classic brick-mould frame and built-in J-channel. Fusion welded, multi-chamber frame designs combine with Atrium’s warm edge spacer system and optional Low-E glass coatings to deliver valuable year-round energy savings. A Series 460 version of this window without J-channel is available as well.
Where To Buy
Features & Benefits
- Beautiful, true brick mould exterior frame perimeter
- Both sashes tilt in for easy cleaning
- Pre-punched nail fin makes installation easy
- Integrated J-channel (Series 460 available without J-channel)
- Half screen
- DP 35 (size tested 36″ x 74″; DP 50 optional)
- Limited lifetime warranty
Energy Efficient Glass Options
Atrium 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 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
Vinyl Color Options
Exterior Paint / Laminate Options
Brick Red (Paint)
Dark Chocolate (Paint)
Hunter Green (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 Top Sash Only
Vertical Top Sash Only
Diamond Top Sash Only
Prairie Top Sash Only
Perimeter Prairie (DH)
Available Grid Types
1-Inch Contoured Grid
3/4-Inch Flat Grid
5/8-Inch Contoured Grid
5/8-Inch Flat Grid
Simulated Divided Lites (SDL) Grid