Sliding window sash balance
I also want to commend your company on the YouTube video showing how to replace them.
Thank you! We work very hard on our videos and I'm glad to hear you find them useful.
I also agree that our S395-30 looks like a good match. The only way to verify is to confirm that the nylon fittings on either end match your style and dimensions. The styles are certainly the same, but I cannot speak for the dimensions. We have detailed measurements on the 19-005 and 15-001 store pages that you can use as a reference. I feel confident that they'll be the same, but it's better to be 100% sure.
OK no problem! We can custom design this balance for you so it has the 15-002 1" shoe instead. I will shortly send you a link to order (6) of these balances. If you have any questions, just ask me! And yes, good job, I think your Top Sash Guide does look like our 18-166. Just go over the dimensions listed on the product page to confirm they match. Thanks again for considering our business, we really appreciate it.