September 14, 2020
These are from a Customshield double hung tilt window, about 13 yrs old. All are approximately 3/16" wide (plastic base) by 1/4" high (to top of central fin). The inside one is smooth on the bottom, while the middle and outside ones have intermittent ridges along both sides of the bottom. All are about the same overall height.
Please recommend a replacement.