Certainteed tilt window Weather Stripping

Thanks for reaching out to us. Take a look at the 58-002 and 58-021. These parts appear to match your given dimensions. Review the specifications and see what you think. 

Dimensions for 58-002 white wool pile

Profile view of 58-021

Yes, the 58-021 has a "fin" down the middle that the 58-002 lacks. A fin seal is a flexible barrier film that provides additional protection against air and water infiltration. However, it is not always necessary. If your original doesn't have a fin seal, adding one may make it more difficult to open and close the window due to the extra material. 

I can't tell if your old pile has a fin seal or not, but we recommend going with the 58-002 if yours lacks the fin.