Therma-Tru universal sill plate is designed for a simple and secure fit on the retractable screen.

• Forms a tight seal and creates a barrier to to keep any debris and unwanted outside infiltration from coming inside. 
• Adds an extra layer of protection to your sub floors.
• Provides a smooth transition, eliminating blunt edges and adding a polished look.
• Slides to the edge of the door frame leaving no sharp corners or gaps.