Top Sash Guide

A quick learner from Irvine says:
Hi there,

I'm trying to find a place to buy this top sash guide, but I don't have a part number, and John Evans' Sons won't get back to me. Do you have any way to help me purchase this? I've included photos of the piece, as well as photos of the top sash guide installed and where I've taken it off. I need at least 2 of these; best would be to have 4 of them.

Thank you!
Top sash guide
A quick learner from Irvine says:
Just want to add - I've identified this part as a piece used in the John Evans' Sons SideLoad Constant Force spring system. I can find the other parts of the spring system here (and ordered them last week), but I can't find this darn top sash guide. My window project is so close to being finished but for this piece. Please help if you can! I just need to purchase these top sash guides, but I don't know who sells them. Thank you in advance!
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Tom from SWISCO responded:
Thanks for contacting us, Arnie! We don't currently have this part, but we think we may have found a good match after some digging. Please give us a little more time as we have it made up for you and I'll let you know when it's available to review.
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Tom from SWISCO responded:
Alright, our new 15-227 is now available. Please let me know if you think this would make a good match!
A quick learner from California says:
thank you so much!
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