This bead is used to hold in a 7/8" IG, aluminum frame window. Tried to use a similar and slightly smaller bead but it rolls behind the glass. It measures 1x3/4.
Dave Sr. from SWISCO responded:
February 4, 2016
Please take a look at our 55-057 and 55-080 snap in glazing strips and see if you can use either of these in your sash.