Plastic weather stripping on the bottom of the window. The part that slips into the track on the window is 1/4 inch wide. The circular part is about 5/16. These dimensions are on the picture if you can see it. The Alcan windows are about 30 years old. Thank you.
Casey from SWISCO responded:
November 4, 2020
Hi there! Thank you for writing in. Take a look at our 58-134 and see if this could work for you.
A quick learner from Bradenton, Florida says:
June 7, 2021
I used 58-134 on one window to see how it worked out. Tough getting it in the track and it is a bit taller than the original weather strip but it worked well. Finished the remaining 5 windows today.
Thanks to SWISCO I have been able to get the windows in this condo back in working order.