Hi there! Thanks for reaching out to us. We may be able to help with this via custom order. Our ribbed Series 751 comes to mind but the shoe that this balance comes with by default is different. Can you show me a close-up shot of the metal tab on the knife lock shoe? I want to confirm if it has the same rounded tab as shown below. May I also see a photo of the stamp printed on the metal channel?
Thanks for waiting while we looked further into this, Holly. I consulted one of our senior experts and it appears customers with the "shorter" shoe shown here were able to use the default shoe that comes with the Series 751. They also had success using the 15-233.
If you're interested in not going the custom order route, you may be able to use the S751-30 with the 29TG stamp. You would also need the 19-030 long S-clip (sold separately). Your metal channel should measure 30" long but we recommend confirming. Can you also confirm the depth and width of the metal channel?
I'm happy to help, Holly! Hopefully, you can enjoy the breeze this Summer through that window. Good luck with the repair, I'll be here if you have any questions.
