Triple Seal™ and StainRite™ Astragals


Low maintenance meets high performance with Quanex’s precision-engineered Triple Seal™ and StainRite™ French Door astragals. Both systems have been tested and third-party confirmed as the most durable and best performing astragals available.

Stainable to Match Your Door Panels

Imperial StainRite™ astragals are designed to combine beauty with low-maintenance functionality. These systems are 100-percent stainable with a realistic wood appearance, but are constructed using a woodgrain vinyl wrap that is guaranteed not to rot, split or warp over time.
StainRite astragals are available with oak or mahogany grain patterns and can be stained to match your door panels.


  • Consistently surpass PG40 air and water ratings because of Quanex’s patented Triple Seal drive-on boot
  • Surpass more than 5,000 weathering cycles with no signs of wear
  • Unparalleled end-user satisfaction with smooth,  one-step operation
  • Easy to install with patent-pending adjustable strike plate base that provides easy adjustments with a unique ratcheting teeth system designed to keep the strike plate in place long-term
  • Security is also heightened with a locking thumb bolt operated by a simple ¼ turn
Contact us to learn more about our high-performance astragal systems.