Pella 250 Series products offer innovative and enhanced security and privacy features for more peace of mind. Made with high-quality, easy-care vinyl, these windows and patio doors deliver exceptional energy performance and Pella craftsmanship
- Pella® 250 Series vinyl double-hung windows are a secure double-hung window and feature a unique tamper prevention system and the exclusive pre-installed Hidden Screen. 
- Dual-pane SunDefenseTM Low-E insulating glass with Argon allows in light while helping to block the heat of the sun, keeping homes cooler in the summer and warmer in the winter 
- Top and bottom sash open for ventilation and tilt in for easy cleaning 
- Pella’s vinyl uses a fade-resistant formula that is performance-tested for excellent weathering, durability and color retention 
- A cam-action lock is made of metal and provides long-lasting performance 
- Pella's exclusive weather-repel system provides three points of protection — including a sloped sill and sill interlock, a design that channels water away from the window and triple weatherstripping 
- Exclusive, pre-installed Hidden Screen appears on the bottom sash when the window is opened and folds away when the window is closed. 
- Nail Fin installation makes for easy instillation in new construction applications 
- Backed by Pella’s limited lifetime warranty, one of the strongest warranties in the industry