Weather Seal for Unknown Brand of Window

Question

Would you be able to identify this weather seal or an appropriate replacement? The opening of the channel on the bottom of the sash is 1/8".

General info: This is a non-tilt, single hung window with no brand markings. I cannot find a way to remove the lower sash. There are no clips in the side channels or attachments at the bottom of the sash. So it does not appear I would be able to "slide in" replacement seal because the sash cannot be removed. Can replacement seal be pushed into place from below and is there a specific technique or tool for this that does not tear the seal?

Thanks!

Paul · Accepted Answer

1/8" is very narrow for bubble seal on the bottom of the sash. It is usually 3/16". Look at our 58-135 and see what you think. In regards to installing the seal in a groove on a non take out window, you would slip one side of the "T" leg under the lip and work the other side with a putty knife to slip it under the lip.