- Works with Perma-Shield Narroline Double-Hung windows manufactured from 1968 to 2011.
- Jamb liners cover the wood frame and provide the vinyl track that allows the sash to slide up and down.
- Fits on the upper right side of the window as viewed from the outside of your home. The right side jamb is split into a lower and upper jamb liner.
- This jamb liner fits windows with an (upper sash) visible glass height of 23-15/16" or 27-15/16".
- The jamb liner length is 24-19/32".
- Gray jamb liners are used on terratone and sandtone color windows.
- Instructions for replacing jamb liners are included with the part.