Replacement Rollyson Top Sash Suides

A home owner from Cincinnati says:
September 5, 2011
To whom it may concern,
I need some replacement Rollyson (circa 1986) top sash guides, and the ones you have pictures in your catalog are almost identical to what it on my window.
The only thing that appears to differ is the 1 7/16" dimension depicted in your side view. Mine is only 1".
See attached photo(s).
Any reason why your replacement pieces wouldn't work in my situation?
Thanks,
Paul
User submitted photo of their Rollyson top sash guide.
Profile picture of Paul
Paul from SWISCO responded:
September 6, 2011
That dimension is not that critical, SWISCO product code 18-124P should work for you.
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