- Pella® 150 Series vinyl double-hung window features a clean design and high-transparency full screen that keeps bugs out 
- SunDefense Low-E glass lets in light while helping to block heat, 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 
- All-metal cam-action locks are anchored to the sash, ensuring long-lasting, dependable operation, with a design that blends hardware into the sash 
- Pella's exclusive weather-repel system provides three points of protection that help channel water away from the home 
- A hidden balance system and tilt latches provide impeccable opening, closing and tilting performance and a more polished look 
- A quick installation frame design features factory-applied foam insulation to help reduce installation time 
- Backed by Pella’s limited lifetime warranty, one of the strongest warranties in the industry