I'm not sure what this part is called. Ifs plastic and holds the weatherstrip that is above where the top and bottom sashes lock together. It runs the width of the window sash.
In the picture showing the profile in my hand, it measures just wider than 1/2" across and about 3/4" down.
Thanks for your help!
Looking for weatherstrip holder/mount for aluminum double-hung window

Quick Learner from St Louis, MO
Aug 17, 2024 9:59 pm
2 user uploaded images
2 Replies

Emily from SWISCO
Aug 20, 2024 2:50 pm


Hey there!
Thanks for reaching out to us. Unfortunately, we don't sell a replacement for the weatherstrip insert shown here. I'm afraid we aren't sure who might so your best bet would be to contact the original manufacturer of the window, whoever they may be. I am very sorry that we can't be of help with this repair; please let us know if you have any other hardware questions.