Looking to match the part shown here. It goes inside the channel and effectively "brakes" the window so it remains in the open position. Malfunctioning window is missing this piece from either side (this picture is from a similar window in home that is properly functioning). Thanks!!
Paul from SWISCO responded:
October 25, 2019
Unfortunately, we do not offer this exact part. The closest match we have is our 17-055 sash carrier clip. Take a look and see if you can use this as a substitute for your window.