Top Sash Guide

A quick learner from Mesa, Arizona says:
Based on the dimensions shown, I believe that I am looking for the 5/8" top sash guide (18-009). My part has only one screw hole (the 3/16") and has a part number H-719. Can you confirm that I have the right Top Sash Guide?
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Paul from SWISCO responded:
That number you gave us, H-719, is more often associated with our 18-177. However this is far different from the 18-009. I think it would be best if you show us a few pictures of your top sash guide. Please also confirm your exact measurements.
A quick learner from Mesa says:
You are correct. It is the 18-177. I ordered several and they were a perfect fit. Thanks for your help.
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Paul from SWISCO responded:
My pleasure! Thanks for the order.
16-002 : Take Out Clip
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16-002
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18-009 : 5/8
5/8" Top Sash Guide
18-009
$1.00
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18-177 : Channel Balance Guide, 7/8
Channel Balance Guide, 7/8"
18-177
$2.50
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