Andersen 20 Narroline Head Jamb Liner in White
- Works with Perma-Shield Narroline Double-Hung windows manufactured from 1968 to 2011.
- This head jamb liner fits on the head jamb (top) of the window.
- Head jamb liners provide a cover for the wood window frame and metal sash balances.
- Fits windows with a (lower sash) visible glass width of 20-7/16"
- The jamb liner length is 24-7/16".
- Instructions for replacing jamb liners are included with the part.