Same for 9/16" window balances

A quick learner from Boston says:
Hello there, I am looking for that exact model of balance top for a very common 9/16"-wide channel balance. Somehow I do not find it in your catalog? 3/8" is not wide enough. Thanks!
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Tom from SWISCO responded:

I'm not sure what it is you're looking for. If it's not in our catalog then I don't know what it could be. Can you show me a picture of the fitting in question?

A quick learner from Boston says:
Here are the pics. The depth of the slanted part is 5/8", which is a lot. I am guessing that the closest product you have is the top sash guide 18-138, of which I should Dremel-out the two little "hat brims" at the top?
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Tom from SWISCO responded:

Thanks for these new images, this is a huge help. I don't believe that our 18-138 can replace this, but we're having trouble finding anything that can. Can you please confirm the width? Looking at your photo, it doesn't look like it's 7/8", but it's hard to tell. Please measure as carefully as you can and tell me what you get.

A quick learner from Boston says:
I ordered a pair of 18-138 and was able to remove the little "hat" with a Dremel, it tugs nicely in the window. I think that's a winner!
Thanks for your help, Tom.
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Tom from SWISCO responded:

Awesome, glad to hear it works! I'll definitely make sure to add that in our notes for this product.

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