- Works with 400 Series Tilt-Wash Double-Hung Windows manufactured from 1992 to Present.
- This wash assist stop is a button-like component that goes on the jamb liner keeping the wash assist from gravitating too low on the side jamb.
- The stops are located in the side jamb liners about an inch above the top edge of the bottom sash.
- Sold in the quanity of one. There are two stops per unit.