Imperial Windows Series™
![imperial-series-banner imperial-series-banner](https://1stclassvinylwindows.com/wp-content/uploads/2019/04/imperial-series-banner.jpg)
Argon-filled Glass Chambers
Argon gas reduces the amount of heat passage through the overall glass package.
1" and 1-3/8" Nailing Fin Depth
Expanded selection of nail-on fin depths increases application compatibility.
Autolock Handle
The window closes and locks with a single motion
All Metal Window Rollers
Metal window rollers are durable and operate smoothly.