- Works with Perma-Shield Narroline Double-Hung (non-tilt) windows manufactured from 1968 to Present.
- Works with 400 Series Tilt-Wash Double windows manufactured from 1994 to Present.
- The sash lock and keeper are flush mounted at the centered of the sash
- This composite sash lock and keeper replaces previous vintage metal lock and keeper.
- Stone sash lock and keeper 1630020