Andersen Side Jamb Bumper (2 1/2″) – Gray Color

• Works with Perma-Shield Narroline Double-Hung (non-tilt) windows manufactured from 1968 to Present.
• This bumper fits in the side jamb liner at the top of double-hung window frame to stop the lower sash from hitting the top of window head jamb.
• This bumper is only used in (56 series) cottage style units in which the lower sash is larger than the upper sash.