Top sash guide identification

A handy person from California says:
January 30, 2022
Hi,

Do you know which top sash guide I should get? These will be guiding a 390 series balance. Also, if my current balances do not have a weight stamp on them, do I use the weight of the window to determine the stamp option?
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Tom from SWISCO responded:
February 2, 2022

We have a couple top sash guides that are similar, such as our 18-073, 18-142, or 18-110B, but none of these are exactly the same as yours. 

Would it be possible to see a couple extra pictures of your top sash guide removed? Seeing it from the side and backside would be a huge help. Just be careful; the screw that secures the top sash guide to your sash may also be what keeps your sash together. If that's the case then make sure to put that screw back in place after you take the guide out.
11/16" Top Sash Guide, Norandex
11/16" Top Sash Guide, Norandex
18-142
$4.70
Top Sash Guide, Fiberlux
Top Sash Guide, Fiberlux
18-073
$1.32
Top Sash Guide, SeasonAll
Top Sash Guide, SeasonAll
18-110B
$2.27
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